Given the following partial class definitions, choose the complete list of the variables that are accessible directly in class A3.                       public class A1 {                                   public int x;                                   private int y;                                   protected int z;                                  …                       }                       public class A2 extends A1 {                                   protected int a;                                   private int b;                                   …                       }                       public class A3 extends A2 {                                   private int q;                                                              …                       }

The following statement is true or false: The content placed inside of comments will be ignored by compiler, so you should not write comments on your code.

How many lines of output are provided by this program? public class PrintLines {     public static void main(String[ ] args)     {         System.out.print (“Two… “);         System.out.print (“One… “);         System.out.print (“Zero… “);         System.out.println (“Liftoff!”);         System.out.print (“Houston, we have a problem.”);     } }

What will the following code fragment print out? String myString = “Java”; System.out.println(myString.length());

How many lines of output are provided by this program?  public class PrintLines {     public static void main(String[ ] args)     {         System.out.print (“Two… “);         System.out.print (“One… “);         System.out.println (“Zero… “);         System.out.println (“Liftoff!”);         System.out.print (“Houston, we have a problem.”);     } }

Write a do-loop that verifies that the user enters an odd integer value – keep asking for an odd integer until an odd integer is entered.

Which of the following verifies that the user enters a non-zero integer value (keeps asking the user to enter a non-zero integer until a non-zero integer is entered)?

str is a String object. Which of the following could throw a StringIndexOutOfBoundsException?

The following statement is true or false: Java is a case-insensitive language meaning that Out, out and OUT are the same identifier.

str is a String object. Which of the following could throw a StringIndexOutOfBoundsException?a) str.length( ); b) str.replace(‘a’, ‘A’); c) str.charAt(10);d) str.substring(0, 4);