What will be the output?1. public interface InfA{2. protected String getName();3. }public class Test implements InfA{ public String getName(){ return "test-name"; } public static void main (String[] args){ Test t = new Test(); System.out.println(t.getName()); }}

JAVA Interfaces and Abstract Classes
What will be the output?1. public interface InfA{2. protected String getName();3. }public class Test implements InfA{ public String getName(){ return "test-name"; } public static void main (String[] args){ Test t = new Test(); System.out.println(t.getName()); }}

Compilation succeed but Runtime Exception

Compilation fails due to an error on lines 1

Compilation fails due to an error on lines 2

None of these

test-name

Compilation succeed but Runtime Exception

Compilation fails due to an error on lines 1

Compilation fails due to an error on lines 2

None of these

test-name

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JAVA Interfaces and Abstract Classes
Which of the following class definitions defines a legal abstract class?

class A { abstract void unfinished() { } }

class A { abstract void unfinished(); }

public class abstract A { abstract void unfinished(); }

abstract class A { abstract void unfinished(); }

class A { abstract void unfinished() { } }

class A { abstract void unfinished(); }

public class abstract A { abstract void unfinished(); }

abstract class A { abstract void unfinished(); }

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JAVA Interfaces and Abstract Classes
Runnable is a _____ .

vaiable

class

interface

method

abstract class

vaiable

class

interface

method

abstract class

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JAVA Interfaces and Abstract Classes
Which two of the following are legal declarations for abstract classes and interfaces?1. final abstract class Test {}2. public static interface Test {}3. final public class Test {}4. protected abstract class Test {}5. protected interface Test {}6. abstract public class Test {}

5 and 6

2 and 4

3 and 5

1 and 2

3 and 6

5 and 6

2 and 4

3 and 5

1 and 2

3 and 6

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JAVA Interfaces and Abstract Classes
What will be the output for the below code ?public interface TestInf{ int i =10;}public class Test{ public static void main(String... args){ TestInf.i=12; System.out.println(TestInf.i); }}

12

Compile with error

None of these

Runtime Exception

10

12

Compile with error

None of these

Runtime Exception

10

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JAVA Interfaces and Abstract Classes
Which of the following declares an abstract method in an abstract Java class?

public void abstract Method();

public abstract void method();

public void method() {}

public abstract void method() {}

public abstract method();

public void abstract Method();

public abstract void method();

public void method() {}

public abstract void method() {}

public abstract method();

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JAVA Interfaces and Abstract Classes

JAVA Interfaces and Abstract Classes What will be the output?1. public interface InfA{2. protected String getName();3. }public class Test implements InfA{ public String getName(){ return "test-name"; } public static void main (String[] args){ Test t = new Test(); System.out.println(t.getName()); }}

JAVA Interfaces and Abstract Classes Which of the following class definitions defines a legal abstract class?

JAVA Interfaces and Abstract Classes Runnable is a _____ .

JAVA Interfaces and Abstract Classes What will be the output for the below code ?public interface TestInf{ int i =10;}public class Test{ public static void main(String... args){ TestInf.i=12; System.out.println(TestInf.i); }}

JAVA Interfaces and Abstract Classes Which of the following declares an abstract method in an abstract Java class?

JAVA Interfaces and Abstract Classes
What will be the output?1. public interface InfA{2. protected String getName();3. }public class Test implements InfA{ public String getName(){ return "test-name"; } public static void main (String[] args){ Test t = new Test(); System.out.println(t.getName()); }}

JAVA Interfaces and Abstract Classes
Which of the following class definitions defines a legal abstract class?

JAVA Interfaces and Abstract Classes
Runnable is a _____ .

JAVA Interfaces and Abstract Classes
What will be the output for the below code ?public interface TestInf{ int i =10;}public class Test{ public static void main(String... args){ TestInf.i=12; System.out.println(TestInf.i); }}

JAVA Interfaces and Abstract Classes
Which of the following declares an abstract method in an abstract Java class?