JAVA Constructors and Methods class A{ A(String s){} A(){}}1. class B extends A{2. B(){}3. B(String s){4. super(s);5. }6. void test(){7. // insert code here8. }9. }Which of the below code can be insert at line 7 to make clean compilation ? A a = new B(); All of these None of these A a = new B(5); A a = new A(String s); A a = new B(); All of these None of these A a = new B(5); A a = new A(String s); 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 int double void None of these int double ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What is the output of the program?class Test{ public int display(int x, int y){ return ("The sum of x and y is " + x + y); } public static void main(String args[]){ Test test = new Test(); System.out.println(test.display(4,5)); } } does not compile None of these The sum of x and y is 45 The sum of x and y is 9 does not compile None of these The sum of x and y is 45 The sum of x and y is 9 ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods Given the following piece of code:class Person{ public int number;}public class Test{ public void doIt(int i , Person p){ i = 5; p.number = 8; } public static void main(String args[]){ int x = 0; Person p = new Person(); new Test().doIt(x, p); System.out.println(x + " " + p.number); }}What is the result? 0 8 5 0 0 0 5 8 0 8 5 0 0 0 5 8 ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods The finalize() method is called just prior to A variable goes out of scope. An object or variable goes out of scope. None of these Before garbage collection. An object, variable or method goes out of scope. A variable goes out of scope. An object or variable goes out of scope. None of these Before garbage collection. An object, variable or method goes out of scope. 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 ) ; } } 0 None of these Compile time error 2.0 0 None of these Compile time error 2.0 ANSWER DOWNLOAD EXAMIANS APP
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