Java Integer sum() method

The sum() method of Java Integer class add the two specified integers values. It returns the same result as given by + operator. Syntax public static int sum (int a, int b)  Parameters The parameters ‘a’ and ‘b’ represent the first and second operands.  Return Value This method returns the sum of ‘a’ and ‘b’. Example 1

public class JavaIntegerSumExample1 {
    public static void main(String[] args) {
        Integer a = 87;
        Integer b = 98;
        //add the two integer values
        int val = Integer.sum(a, b);
        System.out.println(a+"+"+b+" = "+val);
    }
}

Output

87+98 = 185

Example 2

import java.util.Scanner;
public class JavaIntegerSumExample2 {
    public static void main(String[] args) {
        int temp,sum=0;
        Scanner scanner= new Scanner(System.in);
        System.out.print("Enter the total numbers to be added : ");
        int num=scanner.nextInt();
        int[] a= new int[num];
        System.out.println("Enter "+num+" elements.");
        for (int i=0;i<a.length;i++){
            a[i]=scanner.nextInt();
        }
        for (int i=0;i<a.length-1;i++) {
                sum=Integer.sum(a[i],a[i+1]);
                temp=sum;
                a[i+1]=temp;
        }
        System.out.println("Sum : "+sum);
    }
}

Output

Enter the total numbers to be added : 5
Enter 5 elements.
25
25
25
25
25
Sum : 125

Example 3

public class JavaIntegerSumExample3 {
    public static void main(String[] args) {
        Integer a = Integer.MAX_VALUE;
        Integer b = Integer.MIN_VALUE;
        //add the two integer values
        int val = Integer.sum(a, b);
        System.out.println(a+" + ("+b+" ) = "+val);
    }
}

Output

2147483647 + (-2147483648 ) = -1