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++; }}

3

None of these

Compilation Error

2

1

3

None of these

Compilation Error

2

1

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JAVA Constructors and Methods
The following code contains one compilation error, find it?public class Test {Test() { } // line 1static void Test() { this(); } // line 2 public static void main(String[] args) { // line 3Test(); // line 4}}

At line 4

At line 3, compilation error, ambiguity problem, compiler can't determine whether a constructor

At line 1, constructor Tester must be marked public like its class

At line 2, constructor call

At line 4

At line 3, compilation error, ambiguity problem, compiler can't determine whether a constructor

At line 1, constructor Tester must be marked public like its class

At line 2, constructor call

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JAVA Constructors and Methods
What will be the result of compiling and running the given code?class A{ int b=10; private A(){ this.b=7; } int f(){ return b; }}class B extends A{ int b;}public class Test{ public static void main(String[] args){ A a = new B(); System.out.println(a.f()); }}

Prints 10

None of these

Compilation Fails

Prints 0

Prints 7

Prints 10

None of these

Compilation Fails

Prints 0

Prints 7

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JAVA Constructors and Methods
Which of the following options is the best for generating random integer 0 or 1?

(int)(Math.random() + 0.2)

(int)Math.random()

(int)Math.random() + 1

(int)(Math.random() + 0.5)

(int)(Math.random() + 0.2)

(int)Math.random()

(int)Math.random() + 1

(int)(Math.random() + 0.5)

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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.

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

None of these

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

It can be accessed easily by the class loader.

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

None of these

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

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

10 50

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

Won't compile because of line (5); constructor can't be final

50

10 50

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

Won't compile because of line (5); constructor can't be final

50

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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 The following code contains one compilation error, find it?public class Test {Test() { } // line 1static void Test() { this(); } // line 2 public static void main(String[] args) { // line 3Test(); // line 4}}

JAVA Constructors and Methods What will be the result of compiling and running the given code?class A{ int b=10; private A(){ this.b=7; } int f(){ return b; }}class B extends A{ int b;}public class Test{ public static void main(String[] args){ A a = new B(); System.out.println(a.f()); }}

JAVA Constructors and Methods Which of the following options is the best for generating random integer 0 or 1?

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

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

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
The following code contains one compilation error, find it?public class Test {Test() { } // line 1static void Test() { this(); } // line 2 public static void main(String[] args) { // line 3Test(); // line 4}}

JAVA Constructors and Methods
What will be the result of compiling and running the given code?class A{ int b=10; private A(){ this.b=7; } int f(){ return b; }}class B extends A{ int b;}public class Test{ public static void main(String[] args){ A a = new B(); System.out.println(a.f()); }}

JAVA Constructors and Methods
Which of the following options is the best for generating random integer 0 or 1?

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

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