class MyClass{ MyClass(){ System.out.print("one"); } public void myMethod(){ this(); System.out.print("two"); }} public class TestClass{ public static void main(String args[]){ MyClass obj = new MyClass(); obj.myMethod(); }} one one two two one one Compilation Error one Exception None of these TRUE ANSWER : ? YOUR ANSWER : ?
What is the output for the below code ?1. public class A{2. int add(int i, int j){3. return i+j;4. }5. }6. public class B extends A{7. public static void main(String argv[]){8. short s = 9;9. System.out.println(add(s,6));10. }11.} None of these Compile fail due to error on line no 2 15 Compile fail due to error on line no 8 Compile fail due to error on line no 9 TRUE ANSWER : ? YOUR ANSWER : ?
Determine output:public class Test{ public static void main(String args[]){ MyClass obj = new MyClass(); obj.val = 1; obj.call(obj); System.out.println(obj.val); }}class MyClass{ public int val; public void call(MyClass ref){ ref.val++; }} Compilation Error 1 2 3 None of these TRUE ANSWER : ? YOUR ANSWER : ?
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 ) ; } } Compile time error 2.0 0 None of these TRUE ANSWER : ? YOUR ANSWER : ?
The variables declared in a class for the use of all methods of the class are called reference variables objects None of these instance variables TRUE ANSWER : ? YOUR ANSWER : ?
class MyClass{int i;int j;public MyClass(int i, int j){this.i = i;this.j = j;}public void call(){System.out.print("One");}}public class Test{public static void main(String args[]){MyClass m = new MyClass(); //line 1m.call(); //line 2}} Compilation fails due to an error on line 2 One Compilation succeed but no output. Compilation fails due to an error on line 1 TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following options is the best for generating random integer 0 or 1? (int)Math.random() + 1 (int)(Math.random() + 0.2) (int)Math.random() (int)(Math.random() + 0.5) TRUE ANSWER : ? YOUR ANSWER : ?
The main method should be static for the reason It can be accessed easily by the class loader. None of these It can be executed without creating any instance of the class. It can be accessed by every method or variable without any hindrance. TRUE ANSWER : ? YOUR ANSWER : ?
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)); } } None of these does not compile The sum of x and y is 45 The sum of x and y is 9 TRUE ANSWER : ? YOUR ANSWER : ?