Determine output:public class Test{ public static void main(String args[]){ MyClass obj = new MyClass(); obj.val = 1; obj.call(obj); System.out.println(obj.val); }}class MyClass{ public int val; public void call(MyClass ref){ ref.val++; }}

JAVA Constructors and Methods
Determine output:public class Test{ public static void main(String args[]){ MyClass obj = new MyClass(); obj.val = 1; obj.call(obj); System.out.println(obj.val); }}class MyClass{ public int val; public void call(MyClass ref){ ref.val++; }}

None of these

2

Compilation Error

1

3

None of these

2

Compilation Error

1

3

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JAVA Constructors and Methods
public class Test { }What is the prototype of the default constructor?

Test(void)

public Test( )

None of these

public Test(void)

Test( )

Test(void)

public Test( )

None of these

public Test(void)

Test( )

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JAVA Constructors and Methods
What is the expected output?public class Profile { private Profile(int w) { // line 1 System.out.print(w); } public static Profile() { // line 5 System.out.print (10); } public static void main(String args[]) { Profile obj = new Profile(50); }}

Won't compile because of line (1), constructor can't be private

50

10 50

Won't compile because of line (5), constructor can't be static

Won't compile because of line (1), constructor can't be private

50

10 50

Won't compile because of line (5), constructor can't be static

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JAVA Constructors and Methods
class A{ A(String s){} A(){}}1. class B extends A{2. B(){}3. B(String s){4. super(s);5. }6. void test(){7. // insert code here8. }9. }Which of the below code can be insert at line 7 to make clean compilation ?

A a = new A(String s);

A a = new B(5);

A a = new B();

None of these

All of these

A a = new A(String s);

A a = new B(5);

A a = new B();

None of these

All of these

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JAVA Constructors and Methods
The main method should be static for the reason

It can be accessed easily by the class loader.

None of these

It can be executed without creating any instance of the class.

It can be accessed by every method or variable without any hindrance.

It can be accessed easily by the class loader.

None of these

It can be executed without creating any instance of the class.

It can be accessed by every method or variable without any hindrance.

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JAVA Constructors and Methods
The implicit return type of a constructor is

There is no return type.

None of these

A class object in which it is defined.

void

There is no return type.

None of these

A class object in which it is defined.

void

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JAVA Constructors and Methods

JAVA Constructors and Methods Determine output:public class Test{ public static void main(String args[]){ MyClass obj = new MyClass(); obj.val = 1; obj.call(obj); System.out.println(obj.val); }}class MyClass{ public int val; public void call(MyClass ref){ ref.val++; }}

JAVA Constructors and Methods public class Test { }What is the prototype of the default constructor?

JAVA Constructors and Methods What is the expected output?public class Profile { private Profile(int w) { // line 1 System.out.print(w); } public static Profile() { // line 5 System.out.print (10); } public static void main(String args[]) { Profile obj = new Profile(50); }}

JAVA Constructors and Methods class A{ A(String s){} A(){}}1. class B extends A{2. B(){}3. B(String s){4. super(s);5. }6. void test(){7. // insert code here8. }9. }Which of the below code can be insert at line 7 to make clean compilation ?

JAVA Constructors and Methods The main method should be static for the reason

JAVA Constructors and Methods The implicit return type of a constructor is

JAVA Constructors and Methods
Determine output:public class Test{ public static void main(String args[]){ MyClass obj = new MyClass(); obj.val = 1; obj.call(obj); System.out.println(obj.val); }}class MyClass{ public int val; public void call(MyClass ref){ ref.val++; }}

JAVA Constructors and Methods
public class Test { }What is the prototype of the default constructor?

JAVA Constructors and Methods
What is the expected output?public class Profile { private Profile(int w) { // line 1 System.out.print(w); } public static Profile() { // line 5 System.out.print (10); } public static void main(String args[]) { Profile obj = new Profile(50); }}

JAVA Constructors and Methods
class A{ A(String s){} A(){}}1. class B extends A{2. B(){}3. B(String s){4. super(s);5. }6. void test(){7. // insert code here8. }9. }Which of the below code can be insert at line 7 to make clean compilation ?

JAVA Constructors and Methods
The main method should be static for the reason

JAVA Constructors and Methods
The implicit return type of a constructor is