1. What is the value of variable a for the following instructions: A. double a = 1.5; a += a + 1; System.out.println(a); Answer:________________________________ B. a = 6; a /= 2; System.out.println(a); Answer:________________________________ C. int a=12; System.out.println(a/5); Answer:________________________________ 2. What are the values of variables a and b for the following codes: A. inta=6; int b = a++; System.out.println(a); System.out.println(b); Answer:________________________________ B. a = 6; b = ++a; System.out.println(a); System.out.println(b); Answer:________________________________