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add two numbers ((class f ({ (public static void main(String args[]) ({…

- - - - public static void main(String args[])
        
        {
        
        int a,b,sum=0;
        
        a=10;b=20;
        
        sum=a+b;
        
        System.out.println("sum is "+sum);
        
        }
- - - - public static void main(String args[])
        
        {
        
        int a,b,sum=0;
        
        Scanner keyboard = new Scanner (System.in);
        
        System.out.println("Enter the value of a");
        
        a = keyboard.nextInt( );
        
        System.out.println("Enter the value of b");
        
        b = keyboard.nextInt( );
        
        sum=a+b;
        
        System.out.println("sum is "+sum);
        
        }