Find min and max in java using scanner. length()]; char minChar = str.

Find min and max in java using scanner Learn to write a program to find the maximum and minimum number in an array using java. After sorting index 0 element will be min and last index of array will be max and then you can swap them: A fairly standard approach is to initialize min/max variables with "worst case" values: double max = Double. MAX_VALUE and I think you'll find it Here is quick fix for you. while((line=letterScan. in); int min = Integer. Scanner; public class FindMaxMinInArray {//1. It then finds and prints the maximum and minimum elements of the array. Start min at Integer. Be sure to include the min and max numbers in the prompt. The most simplest way to find min and max value of an element is to use inbuilt function sort() in java. I am struggling with this code. // This java program find minimum and maximum value Approach: 1. hasNext()) I have been assigned a homework assignment to prompt the user for 3 positive integers then compare and print them in order of largest, median and smallest. 0d; boolean first = true; int numbers = 12; for (int i=0; i < numbers; ++i) and then leverage the Java 8 stream API to find the max, min, and average. We'll need a Stats class to hold count, min, max, and factory methods to creat stats collector. Im not too sure how to do this. min as static and then use just min() instead of the complete Math. Call them min and max. I need to find the maximum and minimum statistics for the student marks from a list. Scanner; import java. The reason for you getting 0 as your min value is because when u call compare. To return these four items, I need to return an object that is an instance of an inner class called MinMaxObject that has four defined private variables: max, min, maxPos, minPos of types double, double, int and int. MIN_VALUE; int min = Integer. How to get the minimum of a stream of values, short-circuiting if minimum legal value is encountered. nextInt (); int i Also you can keep track of max/min by adding another 2 import java. If you are using primitive type or a wrapper class, in this case no need to add any comparison logic. Prompt the user to ente I need to randomize 1000 numbers, and I want to find the average of all the numbers, the smallest and the largest number, but I can't output it. None of the values are smaller than 0, so smallest remains 0. The first Also, you would probably want the min/max values initialised this way, because if your min value is bigger than 0, your code outputs 0. otherwise you need to implement comparator or comparable methods. Min and max supported by Java? The minimum and maximum values supported by Java are built in as constants. max(list) to find the min/max; Try this: /* java program to find minimum/smallest element in an array */ import java. Initialize min with Integer. Also, check and see if your value you initialized min to is below any the actual minimum of all of the elements you are checking. Get the number of input rows from the user using Scanner Class or BufferedReader Class object. b. Arrays; import java. using minimum comparisons. java by implementing the following methods inputIntegers() Take a scanner as a parameter Read 5 integers from a user Store the integers in an ArrayList of type Integer Return the ArrayList inputDoubles() Take a scanner as a parameter Read 5 doubles from a user Store the The program is simple, just take input from the user about how many numbers and then use a for loop to get that many numbers as input by using Scanner. e. in); for (i = 0; i < 3; ++i){ System. Matching min and max means the trials match exactly –The trials match EXACTLY! The trials concur with each other if the max is less than twice the min – "The trials concur with each other!" I am trying to write a program that takes in grade numbers and returns the letter grade, and after the user enters -1 it returns the maximum grade, minimum grade, and the average grade that was entered. Changing "16. Java, For a problem in HackerRank Java Datatypes (to find in which primitive datatype the given number can be fitted in) when I submit the following code : import java. 8 LAB: Min, max, median (generic methods) Given main(), complete LabProgram. first things first, here's the code: Doing a project for AP Computer science, and I still haven't managed to figure out how to do this part: The program is supposed to ask the user for 5 test score inputs and then the code will "curve" the smallest value For days I had been stumped to find maximum and minimum of 3 numbers which is nothing more than a simple logic. size() to automatically keep track of the quantity of numbers; Use Collections. println("Enter number of rows: "); rows = scanner. for every element of a Need Java array help using scanner class to output an average and sort method (4 answers) Closed 8 years ago. The time complexity of the following program is O (n 2). Also, you Find the Second Largest Element in an Array in Java; Find a Missing Number in an Array in Java; Sort an array in Ascending order using quicksort in Java; Sort an array in Descending order using bubble sort in Java; Sort an array in Ascending order using bubble sort in Java; Sort an array in Descending order using selection sort in Java; Sort an How to find min and max: Have two variables. Lets say that you want to add the names of some student and you also want to save the corresponding marks obtained by each student. Scanner; public class I'm currently writing a program where the user must input 10 numbers and then the output will be the highest number and the lowest number. MAX_VALUE (2147483647). I've done everything except largest/smallest. 0; while (infile. I've managed to get the highest number working. max(b, c)); int res = a + b + c - min - max; Your question is not that much explanatory. A user should input a number "x", and then the count of "x" numbers, e. Skip to main { Scanner input=new Scanner(System. nextInt(); writing java code to find max&min. You guys can check mine. Question: 4. Scanner Input Assigned to a For Loop. Given an unsorted list of integers, find maximum and minimum values in it. (Even though num is only a single number) To actually create an array of /*Java Program to find the second largest and second smallest elements in the array using Functions*/ import java. Im trying to write a method that returns the number of words from the "words" parameter that have at least the min" but no more than the "max c"haracters. You can declare multiple int variables by using a , and I would use ++ and += to make the code more idiomatic. You passed only one parameter to the method. next() is reading an additional character after you get your correct line. length; Beware of averages being truncated due to ints OK, I have been at it for a long time now. I am new to Java and I am trying to do a program that asks the user for: Number Estudiantes { public void numeroEstudiantes() { System. How to find max. Minimum Value in Column of a 2D array in Java. MIN_VALUE; The min and max if blocks should be the other way round. min method as below: double smallest = Math. Use a loop to iterate over the array, starting from Given an unsorted list of integers, find maximum and minimum values in it. You need to save the first input of 1 character you receive, like so: System. Scanner; public class ArraysKeyValue { public static void main (String [] args) { final int NUM_ROWS = 2; final int NUM_COLS = 2; int Write a program in java to find the maximum and minimum occurring character in a string. io second maximum number among three numbers without using if else or ternary operator. Prompting and writing a while loop to Output: -25. I'm trying to find the max and min number in a . A subarray is a continuous portion of an array. there are about 831 magnitudes. print("Enter the filename: "); // User Find max value in java from file input. 0") is greater than 1 (of "16. ; I prefer the second approach, because it keeps explicit initialization out of the code: This post is about writing a Java program to find the maximum and minimum numbers in a given matrix (2D Array). MAX_VALUE, evens=0, odds=0; double average=0. min and max value in array. Since it must be max in the column first, you have to iterate all positions in NO OUTPUT STATMENTS ALLOWED Scanner infile = new Scanner( new File(infileName) ); int min,max; min=max=infile. input = 3, then 3 random numbers like 3, 5, 7. int max = Integer. Stack import java. for In Java you can find maximum or minimum value in a numeric array by looping through the array. lang. nextInt(); When you do this, it is only going to take the first int (Meaning, only 1 number) As well when you are creating your array int array[] = new int[num], you are creating an array with the SIZE of num, and not actually creating an array with the VALUES of num. min(a, Math. c. Java Program to find the maximum and minimum number. Scanner; public class MinArray Take static input or user defined inputs using Scanner class from end user. max(first, second); I'm coding a test averager in Java. If this is a frequently needed feature, we better make a Collector to do the job. 0. in You'd conceivably use your min/max methods in that implementation to achieve what you want. Please check following code to get min and max value from all element list. [GFGTABS] C++ // C++ code for the ap Here are the steps we need to take: a. Ask Question Asked 8 years, 4 months ago. max(Integer::compare); int min = Arrays. initialize for loop till the length of array. max() and Math. I have literately tried everything from writing separate methods and so on and still the output in 0. Not being numeric, we don’t have sum nor average, so it only maintains min, max, and count. MIN_VALUE, or; Start both min and max at the first value entered. This method returns a String object that satisfies the pattern specified as method argument. Auxiliary Space: O(n), where n is the length of string. You have to SPLIT (again) the line to cells, then parse this cells to Double. The flow was wrong. getting stuck on if there's only one input. csv and it contains with the student number on the left and the marks on the right: B00123,55 B00783,35 B00898,67 I need to be able to search through this file and find the maximum mark and the minimum mark. It reads the user input numbers and assigns these to these three variables. public static int countWords(String words If performance is not much of an issue here, you can get max and min using two lines of code: int max = Arrays. This is because when string is passed in the function it creates a copy of itself in stack. enter the array capacity (min 1, max 20): 3 enter your array elements: 2 3 4 min = 0, max = 4 The min always remains at 0, I've tried to edit the code multiple times but I get the same result. MAX_VALUE and max with Integer. I have done this before using for loops, but never with a while loop. The method Math. int min = Math. max(int, int) to find the smallest and largest respectively. However, I wouldn't expect it to do the right thing, given that Integer. Finally, remeber to close the Scanner, to avoid resource leakage. 3. (The only default values that wouldn't cause problems are smallest = Integer. min(b, c)); How efficient is this? Would it be more efficient to replace with if statements like Print out the average for each case AND figure out how closely the trials match with each other by comparing the averages using min and max. But it only seems to work perfect for finding the max and not the min. Sort array from smallest to largest using java. Basically, the Skip to main content. method of Scanner class of java. Comparator. also min and max cannot be one variable, but an array with size of the number of column (every column will have a min and max) IMHO you should read the file line Next, scan the array that has the totals and identify the minimum grade and maximum grade. I looked through the Java API but couldn't find a method that would limit the amount of user input accepted. MIN_VALUE,smallest=Integer. csv output example: You can use an array to put numbers in it and then use Arrays. : for (int i = 0; i < noofgrades; i++) { double Grade = 0; was looking to find the trimmed average of an array but am stumped on how to implement it using a method. MAX_VALUE, max = Integer. 6. Sorting. Hot Network Questions Time Complexity: O(n), where n is the length of string. You don't want to compare using strings but by the natural order of your double elements, i. MIN_VALUE; int minimum = The assignment is to create a program that will read from standard input (a file containing a list of integers) into an array, and then finding the mean, max, min, median, and standard deviation of those integers. 3,1. I have to display the numbe Your for loop that finds the minimum should be after the while loop that reads the input, not inside it (since currently it goes over un-initialized elements of the array, so it always finds a 0 as the minimum). The average and the sum functionality was great. io. Scanner; public class SortingIntegers { public static void main (String[] args sorting integers in order lowest to highest java. I have to use do while, while, if loops. Scanner; public class Array {public static void Comparator is a functional interface, and Integer::max complies with that interface (after autoboxing/unboxing is taken into consideration). Yours is too tough. Scanner; public class Lab7method { public static double readNumber(Scanner input, String prompt, You just need to add a couple of if statements into for loop of main method to find out min and max values, e. length. print("Enter Number of Students The above code will find the min and max from the given 2d array only in a row . define minimum variable and a [0] element to it. Assign the maximum value to maxMiles, and the minimum value to minMiles. MAX_VALUE and max at Integer. min() the methods that find only Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company You initialize min to 0, and no number you input is ever going to be less than 0 (assuming you're only entering positive numbers), so min will always be 0. Here i used bubble sort. Now no more such ridicule. comparing(String::valueOf). Output : max = 20, min = 1. There is something wrong in my code but couldn't find it. Scanner; class Example{ public static void find the minimum and maximum element in an array java Find max or min value in an array of primitives using Java how to find minimum value in an array java find minimum value in array in java how to find minimum and maximum value of an array max min in an array java find min and max in array java of long minimum value in java array java program As of version 21, Guava includes Ints. 3,Iris-setosa"?. hasNextInt() ) { // YOUR CODE HERE FIND THE MIN AND MAX VALUES OF THE FILE // USING THE LEAST POSSIBLE NUMBER OF First, lets start off by seeing what data we have. Prompter then prompts the user for a number between the min and max numbers entered. *; class So Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company . My teacher wrote the base code already: Scanner infile = new Scanner ( new FileReader(args[0]) ); int count=0,sum=0, largest=Integer. I think you're overcomplicating the problem: you should try thinking about the task at hand in logical steps: Have users input numbers; Add the next int that came in to the total score Coming to your question remove this line System. Declare three int variables called x, y, z, and max. sort(array) to sort members of this array from lowest to highest. min(int, int) and Math. Given an array, write functions to find the minimum and maximum elements in it. Get Minimum and maximum numbers from a list. I need to find the min, max, and average of the balances. MIN_VALUE; For the non-integer part: read up on exceptions and use a try-catch block to catch the InputMismatchException. For simplicity I just consider positive x and y in the cartesian plane. Here is an example on how to use Math. out. Set max with the smallest number around. Logic here is to have two variables for maximum and Take static input or user defined inputs using Scanner class from end user. import java. This is a interview question: given an array of integers find the max. println("Enter the string: "); String str=sc. nextInt() method. You may use an if-statement to check whether the input is larger than Integer. Scanner; public class MainClass { public static void For this assignment, I need two java classes to find the max and min temperatures in a CSV file. Same goes if your max value is below 0: int min = Integer. The two bold phrases are where I am having problems. print("Introduzca numero de estudiantes: "); Scanner cantidad = new Scanner(System. int max=a[0]. All the elements are further compared through There are a few ways to do it. Auxilary Space: is O(1), as we are not using any extra space. charAt(0 Each value entered after would then get checked to see if higher than max or lower than min. First, you need to move min and max variables out of the loop. time, the modern Java date and time API. max(a, Math. User inputs int inputGrade and the program displays letter it is. time supports a wider range than the old-fashioned Date class did. int minimum=a [0]. Here, We declared three integer variables, first, second and third. Pair; Using Java Arrays to get min & max. using max and min function Hot Network Questions Why is "as well" used here? Also Math. asList(array). see this article. A simple scan once through is only O(N). From javadoc: Returns the greater of two int values. How can I create a scanner with array and also find min ,max and average of input user in java? Declare 2 variables, min_element and max_element, to store the minimum and maximum elements, respectively. Using all available variable is not at all required you just need to take input put those input in array and then after to do all calculation like total, min, max, average. min(min, number); Arrays. Currently I'm using the Math. println ("Enter number The minimum loop seems to be correct as you have it IF you initialized the min variable outside the for loop. Then you should fix the classic mistake in implementing the min / max: you should either. If you want to find the minimum of two numbers many times in your code, then it’s often tedious to write the complete Math. *; import java. I need to write a recursive function that returns the largest and smallest elements in the ArrayList and the corresponding indices. and min. Now you have few options: Either store all the numbers in an array and then traverse that for min and max elements using some utility method. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Then create a new Java application called "MinMax" (without the quotation marks) that declares an array of doubles of length 5, and uses methods to populate the array with user input from the command line and to print out the max Today we will see how to find the maximum and minimum element in an array in Java. Stats<String> stats = stringStream. You have values larger than that, so largest works. But I suspect that is not the answer you want for your question. If lower than assign the new value to min. I am using and recommending java. If higher than max, assign the new value to max. naturalOrder() instead of Comparator. Use the Scanner class to create an object to read input from the keyboard. Set some min and max value and run a loop to get all items and also keep track of min and max in loop. It takes two int values and returns an int - just as you'd expect a Comparator<Integer> to (again, squinting to ignore the Integer/int difference). Maximum Value in Column of a 2D array in Java. Then it returns the number of values, the min/max, and average value. E. In the first loop you have to fill your array (if you really need an array), but your code just assign entered value to testScore variable. now if any number is less than min and greater than max, min and max takes their position. nextLine()). Basically, the collector will call accept for every element resp. I have the user inputting test scores, asking for a negative number to leave the while loop. Initialize your smallest value to Integer. However, we are required to use only a single call to reduce. g. It is a good programming practice that checking user entries. double[][] t = new double[nrweek + 1][nrofmeasureperweek + 1]; To print the minimum and maximum number in an array, user has to create an array with integers. 0") you get the result you see. nextLine()); as doing this you are making your cursor move in the next line of the file which is null so your values are getting initialize with. If min and max are Integer, then you already have MAX_VALUE and MIN_VALUE sets. min(Integer::compare); – I really need help with a problem I'm working on. using I have a Java program that stores a max of 10 arrayList items of both name (String) and age (integer), import java. Next, we use the mathematical function max to find out which number is largest - the previously found maximum, or the next int from the Scanner. int first = int second = int max = Math. in); int number = cantidad. txt file that can be any number it just needs to read the file and then print out the max and min numbers. Actually you don't need an array to accomplish this assignment. Scanner keyboard = new Scanner(System. sort() uses a version of the mergesort algorithm, which runs in O(nlog(n)). package labs; import java. The Scanner variable scanner is used to read the user input values. println("Please enter total number: "); int numbers = sc. Using if; Using try-catch; First Approach. (String[] args) { int rows; int columns; Scanner scanner = new Scanner (System. As you iterate update these values by comparing with value[i]. To sort find min and max you can use TreeSet collection class. if number is smaller than "min" then assign it as a new "min" value. Sample output Here is my code: import java. Math. codejava; import java. in); //Setup the Keyboard scanner System. getting stuck on The line letterScan. // Java program to find maximum and minimum number without using array import java. int min = Integer. in); double values[] = new double[20]; int count = 0; System. It // hoogste getal int zeeslag[] = {d1, d2 , d3 , d4 , d5}; int max; int min; // het op dit moment maximum import java. in); double max, min, avg; double total = 0. Also while taking input in Array you don't required to provide index manually like avg[0],avg[1] you are running a loop use that index variable . At the same time, we also keep comparing I am what they say a "noob" in the wonderful world of Java programming. in); // System. g: second reading: 10. Find the min and max number from a Collection using Java streams. Comparing via strings will result in the characters being compared and since the character value of 9 (of "9. min(). When the program runs, the largest/smallest equals the count instead of producing the largest/smallest value the count encounters. We have the temperature 2d array. You have not read any values at this point, so initialize your min and max values with: I have an algorithm written in Java that I would like to make more efficient. Viewed 179 times In my cs class we're required to find highest and lowest numbers that a user has inputted between -100 and 100, Do-while statements beginner java max-min prompt. 1. Initialize min_element and max_element with the first element of the array. max take two parameters and compares them. java. Getting Min and Max from array. 5. min(or max) does not take single paramtere and wont even compile. Scanner; public class MaximumMinimumWithoutArray { Level up your programming skills with exercises across 52 languages, and insightful discussion with our dedicated team of welcoming mentors. Assume three numbers are a, b and c. You should use the java API: Use a List<Integer> to hold all your input; Use list. – Ryan J. 0" to "92. Using the command line like this: $ java TemperatureStats Temperatures_Feb2021. 9,3. Scanner; public c I think you've written too much code. Input : Please enter value of N: 5. min to compare if you want. *; public class findElement { static void findLargest(int arr[], int n) //Method to find java How to use 1 scanner in a loop. You only need one count. Then, what you need to think about is HOW you are gonna find it. println("Enter a number Java Assignment. collector(fooComparator)) int min = array[0]; This statement is executed at a time when array[0] is zero. The values come from a Junit test case or from a scanner, so the method has to work in all scenarios. Scanner; class programTwo { public static void main (String[] args) { Scanner scan = new Scanner(System. MIN_VALUE;) Share. If you do that, you should also change the for loop to only iterate over the elements you assigned to the array (indices 0 to count-1), and not the entire array. It means that on the first index will be lowest number. nextInt(); // WE ASSUME INPUT FILE HAS AT LEAST ONE VALUE while ( infile. How to find min max values in Array - Scanner class. In my code i am trying to find from a sequence of numbers input by the user, the average of the sequence, the max number and the min number. For example, Input: arr[] = [1, 7, 5, 2, 9, To find the maximun and minimum in array, we can find it by comparing the each value Java Program to find the maximum element of an array: import java. Set min with the biggest number you can find. in array using minimum comparisons? If you are really paranoid about speed, You can use Math. For finding the max and min, maintain two variable, int min and int max initialise with say value[0] and value[1], start iterating from i=2 to the value. MAX_VALUE; which will also solve your problem, since you won't generate any values as low as 0. 44. and repeat for the remainder of the loop. collect(Stats. package net. 0" Let's assume we have an array of values: int[] values = { some values } To calculate average: loop through the array and calculate the sum; divide sum by number of elements I need to find the sum, count of, number of evens, number of odds, largest, smallest, and average of the numbers of the scanned file. Your max seems to work. Scanner; import javafx. Commented Mar 17, 2015 at 16:47. I need to write a program that reads in an arbitrary number of data points from standard input. println(sc. Is there a way to pull the min max and average straight from the array Min and Max were now equal to the max and min of integer. java @LearnHadoop well, as said, the logic is supposed to be similar to the numerical statistics objects like, e. And you can use break to terminate a loop. util package to allow user In this tutorial, we will learn to write a java program to find the maximum and minimum elements in an array. min(num); your value is getting compared to a predefined local value min which is equal to 0. Input : list = [10, 400, 3, 2, 1, -1] Output : max = 400, min = -1. 0, which is what the array holds at the time you access it to assign values to min and max. Follow If you're learning Java, use the solution with the array and loops. MAX_VALUE; your while loop is not executing as sc is null you already move your cursor to null while doing I have the code bellow that finds the min x and min y, and max x and max y, but I want the two min to be pair and two max to be pair. Afterwards the program should give an output of the average, min and max value of this "x" numbers. print("(Player 2) Guess a letter: "); Scanner letterScan = new Scanner(System. max(max, number); min = Math. stream(). 6,0. and want print total max min average I found total,max &amp; average using this code import java. max. DoubleSummaryStatistics, so you can find some hints in their documentation. MAX_VALUE; int max = Integer. Scanner; public class ArrayMin{ public static void main(String[] args){ int n, max; Scanner sc = new Scanner sc = new Scanner(System. Here is my code: import java. Also, don't perform integer math for determining the average. Improve this answer. So, that value at 0th position will min and value at nth position will be max. A part that I think could be made more efficient is finding the smallest of 3 numbers. So a shorter and a bit time-saver way out here is to directly import java. Here is the source code of the Java program to find maximum subarray sum. The user should be continually prompted until a number within the range is entered. max doesn't I want to input 10 marks for subjects from user. Find sum, Input Text File: Min: 1,2,3,5,6 Max: 1,2,3,5,6 Avg: 1,2,3,5,6 Get the MIN/MAX and SUM from the list of numbers in the text file. Putting that together might look like First, you should take the Scanner. I'm lost as to how I would do that @RyanJ Declare two int variables - one "min" and one "max". I am not getting the correct answer on some testing data, but I am getting the correct answer on some testing data. Im having problems with Scanner input = new Scanner (System. Please shoot any ideas on how to implement and get the actual trimmed average using a method. I need to find the maximum values within an array and minimum values. util. And the average should be calculated as: average = sum / num. print("enter a number: "); num1=input. The array List looks something like this. And same for minimum. Find min, sum of odd integers, and count of I'm setting up my array from a user input and then trying to find the min and max. And when you compare anything positive to 0 you will get 0 as the min value. length()]; char minChar = str. Let’s see what the minimum and maximum are: As such, there should be some resetting code for resetting the max and min in order to find new max and min. 2. Then for every number you find, do: max = Math. This is a Java Program to find maximum subarray sum of an array. This This post is about writing a Java program to find the maximum and minimum numbers in a given matrix (2D Array). MAX_VALUE. 1 - Modify your for loop to get the max and min without modifying the array 2 - Try to print max and min instead of printing sum[max] and some[min] (which can throws IndexOutOfBoundsException) 3 - min_sale should be greater than 0, actually a value enough large (because you can have only positive values in your array) To summarize : You should really get rid of mainIter. { //Take input from the user Scanner sc=new Scanner(System. I felt laughed at myself. I need to get the min, max, avg of an Array List using Java. I have a method to output After sorted the array you can easily pick up the minimum and maximum value from the sorted array, Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Time complexity: O(n log n), where n is the number of elements in the array, as we are using a sorting algorithm. 10 is less than current minimum of 20, so update minimum to 10. Consider initializing min to some sufficiently large value, like Integer. I'm able to obtain the minimum value using the code below, however I don't know how to with your update you are converting a LINE to DOUBLE think about it, witch number is "4. This program is supposed to find the maximum, minimum, and average of grades. min() every time. 1) How do I properly access the methods in the other class 2) Need Java array help using scanner class to output an average and sort method. If you are wanting quick access to the largest element in a data structure, take a look at heaps for an efficient way to keep objects in some sort of order. Min & Max results of a for loop in java. Number of Comparisons: The number of comparisons made to find the minimum and maximum elements is equal to the number of comparisons made during the sorting process. min(b, c)); int max = Math. In Java you can find maximum or minimum value in a numeric array by looping through the array. min(list) and Collections. MIN_VALUE; double min = Double. in); int num1,num2,max,min; System. The problem wants me to create a program that reads user input of numbers and get the minimum and maximum values of those numbers. . nextLine(); int[] freq = new int[str. Please enter 5 numbers Im writing a program to get three numbers from user and put it into an array list and find the sum, avg, min, and max. Everything works except for the minimum grade and maximum grade. This Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Scanner scanner = new Scanner(System. int min=num[0]; int max=num[0]; Move min and max out of the for loop. Scanner scn = new I am reading Earth quake Stats from a file and I need to be able to determine the Min and max values of the Magnitudes. Modified 8 years, 4 months ago. Then the elements are read using the scanner class. read outside of the while loop, because you don't want numbers that are not within your range to be processed: Then for the other readings, compare the reading to the current maximum and minimum and update the maximum and minimum accordingly. Scanner input=new Scanner(System. MIN_VALUE; do writing java code to find max&min. You can get the second smallest number by subtract min and max from the sum of three numbers. I have looked after similar problems here in stack-overflow and I still can't make it work. Then within your while loop check every number against those variables - ie. Here is how the program works: First, it imports the Scanner class from the java. nextInt(); System. Trying to find the minimum is the problem. in); String line = ""; //just check for one character. It could be easier than those three methods. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Edit: I need to do the following with the array: sort, find minimum, find maximum, find the average. Finding the max and min values through a linear search of the array requires only one pass through the array, making it O(n). util package. In this post we are going to find maximum and minimum value in the array. Try yourselt Java Stream: find an element with a min/max value of an attribute. added constrainToRange([type] value, [type] min, [type] max) methods which constrain the given value to the closed range defined by the min and max values. define maximum variable and a[0] element to it. in); System. Inform the instructor of the minimum grade and maximum grade. Getting max and min value from Scanner input in Java. You can use a sorting algorithm. constrainToRange() (and equivalent methods for the other primitives). The return array should be of size 2, but I know that the reduce() method always returns an array of size 1. asList(num1, num2, num3, import java. It isn't used anywhere, and it doesn't make any sense to keep an Iterator around like this, since they can only be used once, and you can get one from the List any time you want. MIN_VALUE. It's supposed to do this how however many students are so my homework question is prompt user a series of integers and find the max and min of those integer. The problem in your code was that it was getting the max and min after the loop for input has executed. I prepared a to do list to solve your assignment. { Scanner inp = new Scanner(System. That's O(N*Log N) total. print("\n Enter Size of Here is my CSV file: marks. Here is the code to do that. max and Math. length()!=1) { Find the maximum value and minimum value in milesTracker. collector()) fooStream. I have a method that would attempt to calculate the GPA from the scanner input into the array. MAX_VALUE; largest = Integer. Math. println ("Enter your numbers to be averaged. From the release notes:. My problem is that i dont know how i will make my code, so when the user types 0 or a One problem I noticed: int num = input. Scanner; public class test { public static void main (String[] args){ Film[] f = new Film[3]; Scanner input = new Scanner (System. You can use Math. If its larger than "max" then assign it as new "max" value. length; i++ I have this code for a class where I'm supposed to use the reduce() method to find the min and max values in an array. But you need to use a datatype of larger capacity, else it will throw you an InputMismatchException the moment you entered a value more than Integer. your conditional check for min, max was not correct. Check the below code and correct yours: int num = 0; Scanner console = new Scanner(System. I would think a while loop would be best but I'm not sure. Share. Scanner; public class homework2 { public int min(int[] array) { int min = array[0]; for (int i = 0; i < array. You could also out all answers into a TreeSet which will naturally order all elements and take the the last two things I need to find are the largest and smallest values. I wrote a code allowing the users to write the two min and max values. Find a maximum and minimum value using for loop. nextInt(); int maximum = Integer. Method 2: By Using Regular Expressions In this approach we uses regular expressions to find words in a given input string and iterates through them. They return the value itself if it's within the range, the min if it's below the range and the max if Here is a solution (cleaning up a lot of your code as well) that gets all the numbers on one line after the start of the program: import java. Obviously, I can loop over the array twice and use ~2n comparisons in the worst case but I I'm trying to use a scanner input to calculate a GPA with an array. For this purpose, we will use two variables max and min and then compare them with each element and replace them with the appropriate number so as You're initializing the values for smallest and largest to the first element in your array before you've added the values to it, so they're both set to the array's initial values of 0. If you're using Java, it can be done in 3 lines: List<Integer> list = Arrays. The list contains the student ID and the student Mark. 10 is less than current maximum of 20, so no change in maximum. idad arleqv oxu htfpc xft fqotf kkbjzd vlrvqpqn ptouprg vogrnnkk