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 (I) Only (II) (II) and (III) (I) and (II) Only (III) Only (I) Only (II) (II) and (III) (I) and (II) Only (III) ANSWER DOWNLOAD EXAMIANS APP
JAVA Inheritence Determine output:class A{ public void printName(){ System.out.println("Name-A"); }}class B extends A{ public void printName(){ System.out.println("Name-B"); }}class C extends A{ public void printName(){ System.out.println("Name-C"); }}1. public class Test{2. public static void main (String[] args){3. B b = new B();4. C c = new C();5. b = c;6. newPrint(b);7. }8. public static void newPrint(A a){9. a.printName();10. }11. } None of these Name C Compilation fails due to an error on lines 5 Compilation fails due to an error on lines 9 Name B None of these Name C Compilation fails due to an error on lines 5 Compilation fails due to an error on lines 9 Name B 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(); }} Compiles successfully and print None of This Compiles successfully and print Compile time error Run Time error Compiles successfully and print None of This Compiles successfully and print Compile time error Run Time error 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. 2 and 5 2 and 4 3 and 5 1 and 2 3 and 4 2 and 5 2 and 4 3 and 5 1 and 2 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
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();}} Runtime exception Class C method2 Class C method3 Class B method2 Class C method3 Compilation Error None of these Runtime exception Class C method2 Class C method3 Class B method2 Class C method3 Compilation Error None of these ANSWER DOWNLOAD EXAMIANS APP
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); }} None of these 20 30 Compiler Error 15 None of these 20 30 Compiler Error 15 ANSWER DOWNLOAD EXAMIANS APP
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