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); }} 20 None of these 30 15 Compiler Error 20 None of these 30 15 Compiler 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. Only (II) Only (I) (I) and (II) (II) and (III) Only (III) Only (II) Only (I) (I) and (II) (II) and (III) Only (III) ANSWER DOWNLOAD EXAMIANS APP
JAVA Inheritence What will be the result after compiling this code?class SuperClass{ public int doIt(String str, Integer... data)throws Exception{ String signature = "(String, Integer[])"; System.out.println(str + " " + signature); return 1; }}public class Test extends SuperClass{ public int doIt(String str, Integer... data){ String signature = "(String, Integer[])"; System.out.println("Overridden: " + str + " " +signature); return 0; } public static void main(String... args){ SuperClass sb = new Test(); sb.doIt("hello", 3); }} hello (String, Integer[]) None of these Compilation fails Overridden: hello (String, Integer[]) hello (String, Integer[]) None of these Compilation fails Overridden: hello (String, Integer[]) 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();}} Class C method2 Class C method3 Class B method2 Class C method3 None of these Compilation Error Runtime exception Class C method2 Class C method3 Class B method2 Class C method3 None of these Compilation Error Runtime exception 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(); }} ClassCastException exception is thrown at runtime. Compilation fails. "vehiclebike" is printed. "vehiclecar" is printed. "carcar" is printed. ClassCastException exception is thrown at runtime. Compilation fails. "vehiclebike" is printed. "vehiclecar" is printed. "carcar" 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(); }} BaseExamiansDerived ExamiansDerived ExamiansDerivedBase ExamiansBaseDerived Compilation Error BaseExamiansDerived ExamiansDerived ExamiansDerivedBase ExamiansBaseDerived Compilation Error ANSWER DOWNLOAD EXAMIANS APP
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