Java Quiz

1. Where does the system stores parameters and local variables whenever a method is invoked?

2. Which of the following is true about public access modifier?

3. A method within a class is only accessible by classes that are defined within the same package as the class of the method. Which one of the following is used to enforce such restriction?

4. File class is included in which package?

5.  Which variables are created when an object is created with the use of the keyword 'new' and destroyed when the object is destroyed?

6. Identify the modifier which cannot be used for constructor.

7. What will be the output of the following Java code snippet?

    class abc

    {

        public static void main(String args[])

        {

            if(args.length>0)

            System.out.println(args.length);

        }

    }

8. Which of the following are not java modifiers?

9. What will be the output of the following Java program?

        class String_demo 

        {

            public static void main(String args[])

            {

                int ascii[] = { 65, 66, 67, 68};

                String s = new String(ascii, 1, 3);

                System.out.println(s);

            }

       }

10. What does Object Oriented Programming means?

11. Which of these jump statements can skip processing the remainder of the code in its body for a particular iteration?

12. Find the output of the following code.

        class ternary_operator 

        {

            public static void main(String args[]) 

            {        

                 int x = 3;

                 int y = ~ x;

                 int z;

                 z = x > y ? x : y;

                 System.out.print(z);

            } 

        }

13. What is the function of javap command?

14. Find the output of the following code.

        class array_output 

        {

            public static void main(String args[]) 

            {

                int array_variable [] = new int[10];

    	    for (int i = 0; i < 10; ++i) 

                {

                    array_variable[i] = i;

                    System.out.print(array_variable[i] + " ");

                    i++;

                }

            } 

        }

15. What will be the output of the following Java program?

        class recursion 

        {

            int fact(int n) 

            {

                int result;

                if (n == 1)

                    return 1;

                result = fact(n - 1) * n;

                return result;

            }

        } 

        class Output 

        {

            public static void main(String args[]) 

            {

                recursion obj = new recursion() ;

                System.out.print(obj.fact(5));

            }

        }