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 (II) (II) and (III) Only (III) Only (I) (I) and (II) Only (II) (II) and (III) Only (III) Only (I) (I) and (II) 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 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 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(); } } 23 321 123 12 23 321 123 12 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();}} None of these Class C method2 Class C method3 Runtime exception Class B method2 Class C method3 Compilation Error None of these Class C method2 Class C method3 Runtime exception Class B method2 Class C method3 Compilation Error 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. } Name C Compilation fails due to an error on lines 9 Name B None of these Compilation fails due to an error on lines 5 Name C Compilation fails due to an error on lines 9 Name B None of these Compilation fails due to an error on lines 5 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 Run Time error None of This Compiles successfully and print Compile time error Compiles successfully and print Run Time error None of This Compiles successfully and print ANSWER DOWNLOAD EXAMIANS APP
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