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. (II) and (III) (I) and (II) Only (II) Only (I) Only (III) (II) and (III) (I) and (II) Only (II) Only (I) Only (III) ANSWER DOWNLOAD EXAMIANS APP
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 4 2 and 4 1 and 2 2 and 5 3 and 5 3 and 4 2 and 4 1 and 2 2 and 5 3 and 5 ANSWER DOWNLOAD EXAMIANS APP
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(); } } 123 321 23 12 123 321 23 12 ANSWER DOWNLOAD EXAMIANS APP
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 ANSWER DOWNLOAD EXAMIANS APP
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(); }} Compile time error Compiles successfully and print Compiles successfully and print None of This Run Time error Compile time error Compiles successfully and print Compiles successfully and print None of This Run Time error ANSWER DOWNLOAD EXAMIANS APP
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); }} prints "Mammal eats food" prints "Cattle eats hay" Class cast Exception at runtime. prints "Horse eats hay" None of these prints "Mammal eats food" prints "Cattle eats hay" Class cast Exception at runtime. prints "Horse eats hay" None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS