Java: Accepts four integer from the user and prints equal

Last update on May 12 2025 13:12:17 (UTC/GMT +8 hours)

Check Four Numbers Equal

Write a Java program that accepts four integers from the user and prints equal if all four are equal, and not equal otherwise.

Visual Presentation:

Sample Solution:

Java Code:

import java.util.Scanner;

public class Solution {
    public static void main(String[] args) {
        // Creating a Scanner object to take input from the user
        Scanner in = new Scanner(System.in);
        
        // Prompting the user to input the first number
        System.out.print("Input first number: ");
        int num1 = in.nextInt();
        
        // Prompting the user to input the second number
        System.out.print("Input second number: ");
        int num2 = in.nextInt();
        
        // Prompting the user to input the third number
        System.out.print("Input third number: ");
        int num3 = in.nextInt();
        
        // Prompting the user to input the fourth number
        System.out.print("Input fourth number: ");
        int num4 = in.nextInt();
        
        // Checking if all four numbers are equal
        if (num1 == num2 && num2 == num3 && num3 == num4) {
            // Printing a message if all numbers are equal
            System.out.println("Numbers are equal.");
        } else {
            // Printing a message if numbers are not all equal
            System.out.println("Numbers are not equal!");
        }
    }
} 

Sample Output:

Input first number:  25
Input second number:  37
Input third number:  45
Input fourth number:  23
Numbers are not equal!

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Java program to check if all elements in an integer array of variable length are equal.
• Write a Java program to determine if exactly three out of four input integers are identical.
• Write a Java program to verify if the given four integers form two distinct pairs of equal numbers.
• Write a Java program to check whether four integers are either all equal or all distinct.

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