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) Only (II) (I) and (II) (II) and (III) Only (III) Only (I) Only (II) (I) and (II) (II) and (III) Only (III) 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 ExamiansDerived BaseExamiansDerived Compilation Error ExamiansBaseDerived ExamiansDerivedBase ExamiansDerived BaseExamiansDerived Compilation Error ExamiansBaseDerived 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); }} None of these Compiler Error 30 15 20 None of these Compiler Error 30 15 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[]) hello (String, Integer[]) Compilation fails None of these Overridden: hello (String, Integer[]) hello (String, Integer[]) Compilation fails None of these ANSWER DOWNLOAD EXAMIANS APP
JAVA Inheritence Which is true? "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 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 if and only if X is an interface and Y is a class "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 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 if and only if X is an interface and Y is a class 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. } None of these Name C Compilation fails due to an error on lines 5 Name B Compilation fails due to an error on lines 9 None of these Name C Compilation fails due to an error on lines 5 Name B Compilation fails due to an error on lines 9 ANSWER DOWNLOAD EXAMIANS APP
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