JAVA Constructors and Methods The variables declared in a class for the use of all methods of the class are called instance variables None of these objects reference variables instance variables None of these objects reference variables ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods public class Test { }What is the prototype of the default constructor? Test(void) public Test(void) public Test( ) None of these Test( ) Test(void) public Test(void) public Test( ) None of these Test( ) ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What will be the return type of a method that not returns any value? void None of these double int void None of these double int ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What is the output of the above program ?class Num { Num(double x ){ System.out.println( x ) ; } }public class Test extends Num { public static void main(String[] args){ Num num = new Num( 2 ) ; } } 2.0 0 None of these Compile time error 2.0 0 None of these Compile time error ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What is the output for the below code ?class A{ public A(){ System.out.println("A"); } public A(int i){ this(); System.out.println(i); }}class B extends A{ public B(){ System.out.println("B"); } public B(int i){ this(); System.out.println(i+3); }}public class Test{ public static void main (String[] args){ new B(5); }} A B 8 None of these A 5 B 8 B 8 A 5 A B 5 A B 8 None of these A 5 B 8 B 8 A 5 A B 5 ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What will be the result of compiling and running the given code?class A{ int b=10; private A(){ this.b=7; } int f(){ return b; }}class B extends A{ int b;}public class Test{ public static void main(String[] args){ A a = new B(); System.out.println(a.f()); }} Prints 0 Prints 7 Compilation Fails Prints 10 None of these Prints 0 Prints 7 Compilation Fails Prints 10 None of these ANSWER DOWNLOAD EXAMIANS APP
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