Quiz 4 (20 pts)

1. Given the code below, when you attempt to compile and run it, what will happen? (10 pts) (Select 1)

   //Q1.java
   public class Q1{
       private int a = 5;
       protected int b = 10;
       public int c = 15;
       int d = 20;
       public static void main(String[] args) {
           Q1 q = new Q1();
   1.      System.out.println(q.a);
   2.      System.out.println(q.b);
   3.      System.out.println(q.c);
   4.      System.out.println(q.d);
   	} 
   }
   
   a. compile time error, because line 1 tries to access a private variable
   b. compile time error, because line 2 tries to access a protected variable
   c. compile successfully, but get a runtime error
   d. compile and run it successfully. print 5 10 15 20
   
   

2. Given the code below, when you attempt to compile it, which statement will give an error message?(10 pts)(Select 2)

   //Q2.java
   package javaone.quiz4;
   public class Q2{
       private int a = 5;
       protected int b = 10;
       public int c = 15;
       int d = 20;
   }
   
   //Q3.java
   import javaone.quiz4.Q2;
   public class Q3 extends Q2
       public static void main(String[] args) {
           Q3 q = new Q3();
   1.      System.out.println(q.a);
   2.      System.out.println(q.b);
   3.      System.out.println(q.c);
   4.      System.out.println(q.d);
   	} 
   }
   
   a. statement 1 tries to access a private variable
   b. statement 2 tries to access a protected variable
   c. statement 3 tries to access a public variable
   d. statement 4 tries to access a package variable