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) (II) and (III) Only (I) (I) and (II) Only (III) Only (II) (II) and (III) Only (I) (I) and (II) 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(); }} BaseExamiansDerived ExamiansBaseDerived ExamiansDerivedBase Compilation Error ExamiansDerived BaseExamiansDerived ExamiansBaseDerived ExamiansDerivedBase Compilation Error ExamiansDerived 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 5 Name B Name C Compilation fails due to an error on lines 9 None of these Compilation fails due to an error on lines 5 Name B Name C Compilation fails due to an error on lines 9 None of these 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); }} prints "Horse eats hay" None of these Class cast Exception at runtime. prints "Mammal eats food" prints "Cattle eats hay" prints "Horse eats hay" None of these Class cast Exception at runtime. prints "Mammal eats food" prints "Cattle eats hay" ANSWER DOWNLOAD EXAMIANS APP
JAVA Inheritence Which of the following is true?1. A class can extend more than one class.2. A class can extend only one class but many interfaces.3. An interface can extend many interfaces.4. An interface can implement many interfaces.5. A class can extend one class and implement many interfaces. 2 and 5 3 and 5 3 and 4 2 and 4 1 and 2 2 and 5 3 and 5 3 and 4 2 and 4 1 and 2 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); }} None of these hello (String, Integer[]) Compilation fails Overridden: hello (String, Integer[]) None of these hello (String, Integer[]) Compilation fails Overridden: hello (String, Integer[]) ANSWER DOWNLOAD EXAMIANS APP
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