1. Which of these is returned by “greater than”, “less than” and “equal to” operators?

2. 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);

            }

       }

3. Which of the following is a type of polymorphism in Java?

4. Which of these is necessary condition for automatic type conversion in Java?

5. Find the output of the following code.

       class overload 

       {

            int x;

     	double y;

            void add(int a , int b) 

            {

                x = a + b;

            }

            void add(double c , double d)

            {

                y = c + d;

            }

            overload() 

            {

                this.x = 0;

                this.y = 0;

            }        

        }    

        class Overload_methods 

        {

            public static void main(String args[])

            {

                overload obj = new overload();   

                int a = 2;

                double b = 3.2;

                obj.add(a, a);

                obj.add(b, b);

                System.out.println(obj.x + " " + obj.y);     

            }

       }

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

7. 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));

            }

        }

8. Find the output of the following program.

public class Solution{
       public static void main(String[] args){
                     byte x = 127;
                     x++;
                     x++;
                     System.out.print(x);
       }
}

9. From the following statements which is a disadvantage of an java array?

10. Which environment variable is used to set the java path?

11. File class is included in which package?

12. Which of these is correct about passing an argument by call-by-value process?

13. What will be the output of the following Java code?

class Char {
public static void main(String args[]) {
char ch1, ch2;
ch1 = 88; // code for X
ch2 = 'Y';
System.out.print("ch1 and ch2: ");
System.out.println(ch1 + " " + ch2);
}
} 

14. Find the output of the following code.

        class output 

        {

            public static void main(String args[])

            { 

               StringBuffer s1 = new StringBuffer("Quiz");

               StringBuffer s2 = s1.reverse();

               System.out.println(s2);

            }

        }

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

        class static_out 

        {

            static int x;

     	static int y;

            void add(int a, int b)

            {

                x = a + b;

                y = x + b;

            }

        }    

        public class static_use 

        {

            public static void main(String args[])

            {

                static_out obj1 = new static_out();

                static_out obj2 = new static_out();   

                int a = 2;

                obj1.add(a, a + 1);

                obj2.add(5, a);

                System.out.println(obj1.x + " " + obj2.y);     

            }

       }