What will be the output?class Parent{ public void method(){ System.out.println("Hi i am parent"); }}public class Child extends Parent{ protected void method(){ System.out.println("Hi i am Child"); } public static void main(String args[]){ Child child = new Child(); child.method(); }}

JAVA Inheritence
What will be the output?class Parent{ public void method(){ System.out.println("Hi i am parent"); }}public class Child extends Parent{ protected void method(){ System.out.println("Hi i am Child"); } public static void main(String args[]){ Child child = new Child(); child.method(); }}

Compiles successfully and print

None of This

Run Time error

Compile time error

Compiles successfully and print

None of This

Run Time error

Compile time error

Compiles successfully and print

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JAVA Inheritence
What is the output of the following program code?abstract class C1{public C1(){ System.out.print(1); } } class C2 extends C1{ public C2(){ System.out.print(2); } } class C3 extends C2{ public C3(){ System.out.println(3); } } public class Test{ public static void main(String[] a){ new C3(); } }

12

321

123

23

12

321

123

23

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JAVA Inheritence
Determine output:class Small{ public Small(){ System.out.print("a "); }}class Small2 extends Small{ public Small2(){ System.out.print("b "); }}class Small3 extends Small2{ public Small3(){ System.out.print("c "); }}public class Test{ public static void main(String args[]){ new Small3(); }}

a

a b c

The code runs without output..

c b a

c

a

a b c

The code runs without output..

c b a

c

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JAVA Inheritence
What will be the output?class One{ final int a = 15;}class Two extends One{ final int a = 20;}public class Test extends Two{ final int a = 30; public static void main(String args[]){ Test t = new One(); System.out.print(t.a); }}

20

Compiler Error

15

30

None of these

20

Compiler Error

15

30

None of these

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JAVA Inheritence
Which is true?

"X extends Y" is correct if and only if X is an interface and Y is a class

"X extends Y" is correct if and only if X is a class and Y is an interface

"X extends Y" is correct if X and Y are either both classes or both interfaces

"X extends Y" is correct for all combinations of X and Y being classes and/or interfaces

"X extends Y" is correct if and only if X is an interface and Y is a class

"X extends Y" is correct if and only if X is a class and Y is an interface

"X extends Y" is correct if X and Y are either both classes or both interfaces

"X extends Y" is correct for all combinations of X and Y being classes and/or interfaces

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JAVA Inheritence
Which of the following is true?1. A class can extend more than one class.2. A class can extend only one class but many interfaces.3. An interface can extend many interfaces.4. An interface can implement many interfaces.5. A class can extend one class and implement many interfaces.

3 and 5

2 and 4

2 and 5

1 and 2

3 and 4

3 and 5

2 and 4

2 and 5

1 and 2

3 and 4

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JAVA Inheritence

JAVA Inheritence What will be the output?class One{ final int a = 15;}class Two extends One{ final int a = 20;}public class Test extends Two{ final int a = 30; public static void main(String args[]){ Test t = new One(); System.out.print(t.a); }}

JAVA Inheritence Which is true?

JAVA Inheritence Which of the following is true?1. A class can extend more than one class.2. A class can extend only one class but many interfaces.3. An interface can extend many interfaces.4. An interface can implement many interfaces.5. A class can extend one class and implement many interfaces.

JAVA Inheritence
What will be the output?class One{ final int a = 15;}class Two extends One{ final int a = 20;}public class Test extends Two{ final int a = 30; public static void main(String args[]){ Test t = new One(); System.out.print(t.a); }}

JAVA Inheritence
Which is true?

JAVA Inheritence
Which of the following is true?1. A class can extend more than one class.2. A class can extend only one class but many interfaces.3. An interface can extend many interfaces.4. An interface can implement many interfaces.5. A class can extend one class and implement many interfaces.