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 Compiler Error 15 30 20 None of these Compiler Error 15 30 20 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); }} Overridden: hello (String, Integer[]) None of these Compilation fails hello (String, Integer[]) Overridden: hello (String, Integer[]) None of these Compilation fails 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();}} None of these Compilation Error Class B method2 Class C method3 Runtime exception Class C method2 Class C method3 None of these Compilation Error Class B method2 Class C method3 Runtime exception Class C method2 Class C method3 ANSWER DOWNLOAD EXAMIANS APP
JAVA Inheritence What is the result of compiling and running this program?class Mammal{ void eat(Mammal m){ System.out.println("Mammal eats food"); }}class Cattle extends Mammal{ void eat(Cattle c){ System.out.println("Cattle eats hay"); }}class Horse extends Cattle{ void eat(Horse h){ System.out.println("Horse eats hay"); }}public class Test{ public static void main(String[] args){ Mammal h = new Horse(); Cattle c = new Horse(); c.eat(h); }} Class cast Exception at runtime. prints "Mammal eats food" prints "Horse eats hay" None of these prints "Cattle eats hay" Class cast Exception at runtime. prints "Mammal eats food" prints "Horse eats hay" None of these prints "Cattle eats hay" 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 Compiles successfully and print None of This Compile time error Run Time error Compiles successfully and print Compiles successfully and print None of This Compile time error Run Time 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 (I) (I) and (II) Only (III) (II) and (III) Only (II) Only (I) (I) and (II) Only (III) (II) and (III) Only (II) ANSWER DOWNLOAD EXAMIANS APP
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