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++; }}

Compilation Error

2

None of these

3

1

Compilation Error

2

None of these

3

1

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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 B(5);

A a = new B();

None of these

A a = new A(String s);

All of these

A a = new B(5);

A a = new B();

None of these

A a = new A(String s);

All of these

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JAVA Constructors and Methods
What is the output for the below code?public class Test{ public static void printValue(int i, int j, int k){ System.out.println("int"); } public static void printValue(byte...b){ System.out.println("long"); } public static void main(String... args){ byte b = 9; printValue(b,b,b); }}

int

None of these

Compilation clean but throws RuntimeException

Compilation fails

long

int

None of these

Compilation clean but throws RuntimeException

Compilation fails

long

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JAVA Constructors and Methods
What is the output for the below code ?class A{ public A(){ System.out.println("A"); } public A(int i){ this(); System.out.println(i); }}class B extends A{ public B(){ System.out.println("B"); } public B(int i){ this(); System.out.println(i+3); }}public class Test{ public static void main (String[] args){ new B(5); }}

B 8 A 5

A 5 B 8

None of these

A B 5

A B 8

B 8 A 5

A 5 B 8

None of these

A B 5

A B 8

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

There is no return type.

None of these

void

A class object in which it is defined.

There is no return type.

None of these

void

A class object in which it is defined.

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JAVA Constructors and Methods
The variables declared in a class for the use of all methods of the class are called

objects

reference variables

None of these

instance variables

objects

reference variables

None of these

instance variables

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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 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 implicit return type of a constructor is

JAVA Constructors and Methods The variables declared in a class for the use of all methods of the class are called

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
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 implicit return type of a constructor is

JAVA Constructors and Methods
The variables declared in a class for the use of all methods of the class are called