Q2:(4 Points) if we have the following two classes defined class Matrix ( int m-

Question

Q2:(4 Points) if we have the following two classes defined class Matrix ( int m-0 public Matrix) (m-s public void jump0 System.out.printin(Jumpm) public void punch m--i System.out.printin("punch"+m) public class Agent extends Matrix int a--2 public Agent() { a=0; } public void gesture) ( a++i System.out.println("glare"+ a) public void punch () gesture() a--i system.out.println("pow!"+ a)i Then what is the output, if we execute the following main method public static void main(Stringll args) Matrix one new Agent ); one.punch) Agent two new Agent i two.punch );

Explanation / Answer

In Java, constructor is called after initialization of instance variables. So, 'a' is set to '0' on creation of an Agent instance.

Java supports polymorphism. So, 'one.punch()' results in a call to 'punch' method in the Agent class. As such, the output of both 'one.punch()' and 'two.punch()' is exactly same.

Output on execution of given main method is as follows:

glare1
pow!0
glare1
pow!0

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