Java: Calculate the sum of two integers and return true if the sum is equal to a third integer

Last update on May 12 2025 13:17:37 (UTC/GMT +8 hours)

Sum Equals Third Integer

Write a Java program to calculate the sum of two integers and return true if the sum is equal to a third integer.

Sample Solution:

Java Code:

import java.util.*;

public class Exercise52 {
    public static void main(String[] args) {
        // Create a Scanner object for user input
        Scanner in = new Scanner(System.in);
        
        // Prompt the user to input the first number
        System.out.print("Input the first number: ");
        int x = in.nextInt();

        // Prompt the user to input the second number
        System.out.print("Input the second number: ");
        int y = in.nextInt();

        // Prompt the user to input the third number
        System.out.print("Input the third number: ");
        int z = in.nextInt();

        // Calculate the result using the sumoftwo function and display it
        System.out.print("The result is: " + sumoftwo(x, y, z));

        // Print a new line for better formatting
        System.out.print("\n");
    }
    
    // Function to check if the sum of two numbers equals the third number
    public static boolean sumoftwo(int p, int q, int r) {
        return ((p + q) == r || (q + r) == p || (r + p) == q);
    }
}

Sample Output:

Input the first number : 5                                             
Input the second number: 10                                            
Input the third number : 15                                            
The result is: true

Pictorial Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Modify the program to check if the product equals the third integer.
• Allow the user to enter multiple numbers and check the sum.
• Write a program to check if the difference between two numbers equals a third number.
• Modify the program to work with floating-point numbers.

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