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

Java Basic: Exercise-52 with Solution

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)
    {
        Scanner in = new Scanner(System.in);
        System.out.print("Input the first number : ");
        int x = in.nextInt();  
		System.out.print("Input the second number: ");
		int y = in.nextInt(); 
		System.out.print("Input the third number : ");
        int z = in.nextInt(); 
        System.out.print("The result is: "+sumoftwo(x, y, z));
		System.out.print("\n");
    }
    
    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:

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

Flowchart:

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

Java Code Editor:

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Previous: Write a Java program to convert a string to an integer in Java.
Next: Write a Java program that accepts three integers from the user and return true if the second number is greater than first number and third number is greater than second number.

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Java: Tips of the Day

Try and catch:

Java is excellent at catching errors, but it can only recover gracefully if you tell it what to do. The cascading hierarchy of attempting to perform an action in Java starts with try, falls back to catch, and ends with finally. Should the try clause fail, then catch is invoked, and in the end, there's always finally to perform some sensible action regardless of the results. Here's an example:

try {
        cmd = parser.parse(opt, args); 
       
        if(cmd.hasOption("help")) {
                HelpFormatter helper = new HelpFormatter();
                helper.printHelp("Hello ", opt);
                System.exit(0);
                }
        else {
                if(cmd.hasOption("shell") || cmd.hasOption("s")) {
                String target = cmd.getOptionValue("tgt");
                } // else
        } // fi
} catch (ParseException err) {
        System.out.println(err);
        System.exit(1);
        } //catch
        finally {
                new Hello().helloWorld(opt);
        } //finally
} //try

It's a robust system that attempts to avoid irrecoverable errors or, at least, to provide you with the option to give useful feedback to the user. Use it often, and your users will thank you!

Ref: https://red.ht/3EZc9OC