Java Integer sum() Method

The Integer.sum() method in Java is a static method used to return the sum of two int values.

Table of Contents

1. Introduction
2. sum() Method Syntax
3. Examples
   • Summing Two Positive Integers
   • Summing a Positive and a Negative Integer
   • Summing Two Negative Integers
4. Real-World Use Case
5. Conclusion

Introduction

The Integer.sum() method is a convenient way to add two int values. This method is part of the Integer class and provides a straightforward way to perform addition.

sum()() Method Syntax

The syntax for the Integer.sum() method is as follows:

public static int sum(int a, int b)

• a: The first integer to be summed.
• b: The second integer to be summed.

The method returns:

• The sum of the two specified integers.

Examples

Summing Two Positive Integers

The sum() method can be used to add two positive integers.

Example

public class SumExample {
    public static void main(String[] args) {
        int a = 10;
        int b = 20;
        int result = Integer.sum(a, b);

        System.out.println("Sum of " + a + " and " + b + ": " + result);
    }
}

Output:

Sum of 10 and 20: 30

In this example, the method adds the integers 10 and 20, resulting in 30.

Summing a Positive and a Negative Integer

The sum() method can also be used to add a positive integer and a negative integer.

Example

public class SumPositiveNegativeExample {
    public static void main(String[] args) {
        int a = 15;
        int b = -5;
        int result = Integer.sum(a, b);

        System.out.println("Sum of " + a + " and " + b + ": " + result);
    }
}

Output:

Sum of 15 and -5: 10

In this example, the method adds the integers 15 and -5, resulting in 10.

Summing Two Negative Integers

The sum() method can also be used to add two negative integers.

Example

public class SumNegativeExample {
    public static void main(String[] args) {
        int a = -8;
        int b = -12;
        int result = Integer.sum(a, b);

        System.out.println("Sum of " + a + " and " + b + ": " + result);
    }
}

Output:

Sum of -8 and -12: -20

In this example, the method adds the integers -8 and -12, resulting in -20.

Real-World Use Case

Calculating Total Score

In a real-world application, you might use the Integer.sum() method to calculate the total score of a game or competition.

Example

public class TotalScoreExample {
    public static void main(String[] args) {
        int score1 = 50;
        int score2 = 75;
        int totalScore = Integer.sum(score1, score2);

        System.out.println("Total score: " + totalScore);
    }
}

Output:

Total score: 125

In this example, the method adds the scores 50 and 75, resulting in a total score of 125.

Conclusion

The Integer.sum() method in Java is a simple and effective way to add two int values. By understanding how to use this method, you can efficiently handle tasks that involve summing integers in your Java applications. Whether you are adding positive, negative, or a mix of both types of integers, the sum() method provides a reliable solution for these tasks.