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 Compiler Error 30 None of these 15 20 Compiler Error 30 None of these 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(); }} BaseExamiansDerived ExamiansDerivedBase ExamiansBaseDerived ExamiansDerived Compilation Error BaseExamiansDerived ExamiansDerivedBase ExamiansBaseDerived ExamiansDerived Compilation Error ANSWER DOWNLOAD EXAMIANS APP
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. (I) and (II) Only (I) Only (III) Only (II) (II) and (III) (I) and (II) Only (I) Only (III) Only (II) (II) and (III) 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(); }} Compilation fails. "vehiclecar" is printed. "vehiclebike" is printed. "carcar" is printed. ClassCastException exception is thrown at runtime. Compilation fails. "vehiclecar" is printed. "vehiclebike" is printed. "carcar" is printed. ClassCastException exception is thrown at runtime. 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. } Compilation fails due to an error on lines 9 Name C None of these Compilation fails due to an error on lines 5 Name B Compilation fails due to an error on lines 9 Name C None of these Compilation fails due to an error on lines 5 Name B 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 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 ANSWER DOWNLOAD EXAMIANS APP
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