Question 1 :

public class A {

  public void m1() {System.out.print("A.m1, ");}

  protected void m2() {System.out.print("A.m2, ");}

  private void m3() {System.out.print("A.m3, ");}

  void m4() {System.out.print("A.m4, ");}

}  

class B {

  public static void main(String[] args) {

    A a = new A();

    a.m1();  // 1

    a.m2();  // 2

    a.m3();  // 3

    a.m4();  // 4

}}

Assume that the code appears in a single file named A.java. What is the result of attempting to compile and run the program?

a.	Prints: A.m1, A.m2, A.m3, A.m4,
b.	Compile-time error at 1.
c.	Compile-time error at 2.
d.	Compile-time error at 3.
e.	Compile-time error at 4.
f.	None of the above

 

Question 2

class GFM11{

  public static void main (String[] args) {

    int x,y,z;

    System.out.println(x+y+z);

}}

What is the result of attempting to compile and run the program?

a.	Prints nothing.
b.	Prints an undefined value.
c.	Prints: null
d.	Prints: 0

e.	Run-time error
f.	Compile-time error
g.	None of the above

 

Question 3

class MCZ11 {

  public static void main (String[] args) {

    char a = '\c';  // 1

    char b = '\r';  // 2

    char c = '\"';  // 3

    char d = '\b';  // 4

    char e = '\'';  // 5

}}

A compile-time error is generated at which line?

a.	1
b.	2
c.	3
d.	4
e.	5
f.	None of the above

Question 4

class MWC101 {

  public static void main(String[] args) {

    int[] a1 = new int[];              // 1

    int a2[] = new int[5];             // 2

    int[] a3 = new int[]{1,2};         // 3

    int []a4 = {1,2};                  // 4

    int[] a5 = new int[5]{1,2,3,4,5};  // 5

}}

Compile-time errors are generated at which lines?

a.	1
b.	2
c.	3
d.	4
e.	5

Question 5

class A {A(int i) {}}  // 1

class B extends A {}   // 2

Which of the following statements are true?

a.	The compiler attempts to create a default constructor for class A.
b.	The compiler attempts to create a default constructor for class B.
c.	Compile-time error at 1.
d.	Compile-time error at 2.

 

Question 6

Which of the following statements are true?

a.	A constructor can invoke another constructor of the same class using the alternate constructor invocation, "this(argumentListopt);".
b.	A constructor can invoke itself using the alternate constructor invocation, "this(argumentListopt);".
c.	The alternate constructor invocation, "this(argumentListopt);", can legally appear anywhere in the constructor body.
d.	A constructor can invoke the constructor of the direct superclass using the superclass constructor invocation, "super(argumentListopt);".
e.	The number of constructor invocations that may appear in any constructor body can equal but not exceed the number of alternate constructors declared in the same class.
f.	A constructor is not permitted to throw an exception.

Question 7

class A {A() throws Exception {}} // 1

class B extends A {B() throws Exception {}} // 2

class C extends A {C() {}} // 3 

Which of the following statements are true?

a.	class A extends Object.
b.	Compile-time error at 1.
c.	Compile-time error at 2.
d.	Compile-time error at 3.

Question 8

Which of the following modifiers can be applied to a constructor?

a.	private
b.	abstract
c.	final
d.	volatile
e.	native
f.	None of the above.

Question 9

Which of the following modifiers can be applied to the declaration of a field?

a.	abstract
b.	final
c.	private
d.	protected
e.	public

 

Question 10

Which of the following modifiers can not be applied to a method?

a.	abstract
b.	private
c.	protected
d.	public
e.	volatile
f.	None of the above.