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

        class Output 

        {

            public static void main(String args[]) 

            {

                Integer i = new Integer(257);  

                byte x = i.byteValue();

                System.out.print(x);

            }

        }

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

        class Output 

        {

            public static void main(String args[])

            {

                int arr[] = {1, 2, 3, 4, 5};

                for ( int i = 0; i < arr.length - 2; ++i)

                    System.out.println(arr[i] + " ");

            } 

        }

3. Which of these is correct way of calling a constructor having no parameters, of superclass A by subclass B?

4. What is the function of javap command?

5.  The following program is an example for?

class Student{
int id;
String name;

void display(){System.out.println(id+" "+name);}

public static void main(String args[]){
Student s1=new Student();
Student s2=new Student();
s1.display();
s2.display();
}
} 

6. What is garbage collection in the context of Java?

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

    class San

    {

     public void m1 (int i,float f)

     {

      System.out.println(" int float method");

     }

     

     public void m1(float f,int i);

      {

      System.out.println("float int method");

      }

     

      public static void main(String[]args)

      {

        San s=new San();

            s.m1(20,20);

      }

    }

8. What is the default value of String variable?

9. Which of the following is a superclass of every class in Java?

10. Which data type value is returned by all transcendental math functions?

11. In Iterator, hasMoreElements() method of Enumeration has been changed to:

12. Which of these keywords is used to prevent content of a variable from being modified?

13. Choose the appropriate data type for this field: isSwimmer

14. 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);
}
} 

15. Which of these keywords are used for the block to be examined for exceptions?