What is the result of compiling and running this program?class Mammal{ void eat(Mammal m){ System.out.println("Mammal eats food"); }}class Cattle extends Mammal{ void eat(Cattle c){ System.out.println("Cattle eats hay"); }}class Horse extends Cattle{ void eat(Horse h){ System.out.println("Horse eats hay"); }}public class Test{ public static void main(String[] args){ Mammal h = new Horse(); Cattle c = new Horse(); c.eat(h); }}

JAVA Inheritence
What is the result of compiling and running this program?class Mammal{ void eat(Mammal m){ System.out.println("Mammal eats food"); }}class Cattle extends Mammal{ void eat(Cattle c){ System.out.println("Cattle eats hay"); }}class Horse extends Cattle{ void eat(Horse h){ System.out.println("Horse eats hay"); }}public class Test{ public static void main(String[] args){ Mammal h = new Horse(); Cattle c = new Horse(); c.eat(h); }}

None of these

prints "Mammal eats food"

Class cast Exception at runtime.

prints "Horse eats hay"

prints "Cattle eats hay"

None of these

prints "Mammal eats food"

Class cast Exception at runtime.

prints "Horse eats hay"

prints "Cattle eats hay"

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JAVA Inheritence
Determine output:class A{public void method1(){System.out.print("Class A method1");}}class B extends A{public void method2(){System.out.print("Class B method2");}}class C extends B{public void method2(){System.out.print("Class C method2");}public void method3(){System.out.print("Class C method3");}}public class Test{public static void main(String args[]){A a = new A();C c = new C();c.method2();a = c;a.method3();}}

None of these

Class C method2 Class C method3

Class B method2 Class C method3

Compilation Error

Runtime exception

None of these

Class C method2 Class C method3

Class B method2 Class C method3

Compilation Error

Runtime exception

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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(); }}

c

a b c

a

The code runs without output..

c b a

c

a b c

a

The code runs without output..

c b a

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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 X and Y are either both classes or both interfaces

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

"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 X and Y are either both classes or both interfaces

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

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

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JAVA Inheritence
The concept of multiple inheritance is implemented in Java byI. Extending two or more classes.II. Extending one class and implementing one or more interfaces.III. Implementing two or more interfaces.

Only (III)

Only (II)

(II) and (III)

Only (I)

(I) and (II)

Only (III)

Only (II)

(II) and (III)

Only (I)

(I) and (II)

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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(); }}

JAVA Inheritence

JAVA Inheritence Which is true?

JAVA Inheritence The concept of multiple inheritance is implemented in Java byI. Extending two or more classes.II. Extending one class and implementing one or more interfaces.III. Implementing two or more interfaces.

JAVA Inheritence
Which is true?

JAVA Inheritence
The concept of multiple inheritance is implemented in Java byI. Extending two or more classes.II. Extending one class and implementing one or more interfaces.III. Implementing two or more interfaces.