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 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 Run Time error Compiles successfully and print Compile time error Compiles successfully and print None of This Run Time error Compiles successfully and print Compile time error ANSWER DOWNLOAD EXAMIANS APP
JAVA Inheritence What will be the result of compiling and executing the following program code?class Vehicle{ public void printSound(){ System.out.print("vehicle"); }}class Car extends Vehicle{ public void printSound(){ System.out.print("car"); }}class Bike extends Vehicle{ public void printSound(){ System.out.print("bike"); }}public class Test{ public static void main(String[] args){ Vehicle v = new Car(); Bike b = (Bike) v; v.printSound(); b.printSound(); }} "carcar" is printed. ClassCastException exception is thrown at runtime. "vehiclecar" is printed. Compilation fails. "vehiclebike" is printed. "carcar" is printed. ClassCastException exception is thrown at runtime. "vehiclecar" is printed. Compilation fails. "vehiclebike" is printed. ANSWER DOWNLOAD EXAMIANS APP
JAVA Inheritence What is the result of compiling and running the following code?class Base{ public Base(){ System.out.print("Base"); }}public class Derived extends Base{ public Derived(){ this("Examveda"); System.out.print("Derived"); } public Derived(String s){ System.out.print(s); } public static void main(String[] args){ new Derived(); }} ExamiansDerivedBase ExamiansBaseDerived Compilation Error BaseExamiansDerived ExamiansDerived ExamiansDerivedBase ExamiansBaseDerived Compilation Error BaseExamiansDerived ExamiansDerived 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); }} 15 20 30 None of these Compiler Error 15 20 30 None of these Compiler Error ANSWER DOWNLOAD EXAMIANS APP
JAVA Inheritence Which is true? "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 "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 ANSWER DOWNLOAD EXAMIANS APP
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