Write a java program to swap a two integer using third variable Temporary.

Program :

class Swap

{

    public static void main(String[] args) {

       

        int x = 5 ;

        int y = 7 ;

        int temp ;

        temp = x ;

        x = y ;

        y = temp ;

        System.out.println("After Swapping " +x);

        System.out.println("Before Swapping " +y);

    }

}

Output :

Write a java program to calculate sum of digit .

Program :

class Sum

{

public static void main(String[] args) {

int x = 123 , Sum = 0 ;

int rem ;

while(x>0)

{

rem = x%10 ;

Sum = Sum + rem ;

x = x/10 ;

}

System.out.println("Sum is "+Sum);

}

}

Output :