Java: Print mode values from a given a sequence of integers

Last update on May 13 2025 13:00:06 (UTC/GMT +8 hours)

Find Mode Values in Integer Sequence

Write a Java program to print mode values from a given sequence of integers. The mode value is the element that occurs most frequently. If there are several mode values, print them in ascending order.

Input:

A sequence of integer’s ai (1 ≤ ai ≤ 100). The number of integers is less than or equals to 100.

Visual Presentation:

Sample Solution:

Java Code:

// Importing the Scanner class for user input
import java.util.Scanner;

// Main class named "Main"
public class Main {

    // Main method to execute the program
    public static void main(String[] args) {
        // Creating a Scanner object for user input
        Scanner input = new Scanner(System.in);

        // Array to store the count of occurrences for each integer (0-99)
        int cnt[] = new int[100];
        
        // Variable to track the current index in the loop
        int i;

        // Prompting the user to input the number of integers
        System.out.println("How many integers would you like to input (Max. 100)?");
        
        // Reading the input value for the number of integers
        int x = input.nextInt();
        
        // Prompting the user to input the integers
        System.out.println("Input the integers:");

        // Loop to process user input and update the count array
        for (i = 0; i < x; i++) {
            // Reading the next integer from the input
            int n = input.nextInt();
            
            // Updating the count array based on the input integer
            cnt[--n]++;
        }

        // Variable to store the maximum count
        int max = 0;

        // Loop to find the maximum count in the count array
        for (int n : cnt) {
            if (max < n) {
                max = n;
            }
        }

        // Prompting the user with the mode value(s) in ascending order
        System.out.println("Mode value(s) in ascending order:");

        // Loop to find and print the mode value(s)
        for (i = 0; i < cnt.length; i++) {
            if (cnt[i] == max) {
                // Printing the mode value (adding 1 to get the original value)
                System.out.println(i + 1);
            }
        }
    }
} 

Sample Output:

How many integers would you like to input(Max.100?)
5
Input the integers:
25
35
15
5
45
Mode value(s)in ascending order:
5
15
25
35
45

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Java program to find the mode values in an integer sequence and compute the frequency of each mode.
• Write a Java program to determine the mode values in an array with multiple modes and sort them in descending order.
• Write a Java program to extract the mode values from a sequence and remove any duplicate entries from the result.
• Write a Java program to find the mode values and then compute the numerical range between the highest and lowest mode.

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• Java Basic Part-II Programming Exercises Home ↩
• Java Exercises Home ↩

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