Consider the following code: public class A What is the output of the following code that uses the class at left? private int num; public A) num = 3; 1 A blah = new A(); blah.ml(); blah.m1(); public void mi num *= 2; 1 int x = 10; int y 15; blah.m2 (x, y); System.out.println(blah); System.out.pintln(x + " " + y); public int m2 (int a, int b) a += num; b = a; 1 public String toString('t return "num: " + num; } }