public class HelloWorld{

? ? public static void main(String[] args) {

? ?int one = 10 ;

? ? ? ? int two = 20 ;

? ? ? ? int three = 0 ;

? ? ? ? three=one+two;

? ? ? ? system.out.println("three =one +two ==>"+three);

? ? ? ? three+=one;

? ? ? ? system.out.println("three += one ==>"+three);

? ? ? ? three-=one;

? ? ? ? system.out.println("three -= one ==>"+three);

? ? ? ? three*=one;

? ? ? ? system.out.println("three *= one ==>"+three);

? ? ? ? three/=one;

? ? ? ? system.out.println("three /= one ==>"+three);

? ? ? ? three%=one;

? ? ? ? system.out.println("three %= one ==>"+three);

? ??

}

}