1. Which of the following is not an OOPS concept in Java?

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

        class Output 

        {

             public static void main(String args[]) 

            {

                double x = 2.0;  

                double y = 3.0;

                double z = Math.pow( x, y );

                System.out.print(z);

            }

        }

3. 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);

            } 

        }

4. What is the syntax for java main method?

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

6. What is an assignment statement?

7. Which constructor creates an empty string buffer with the specified capacity as length.

8. Find the value of A[1] after execution of the following program.

int[] A = {0,2,4,1,3};
for(int i = 0; i < a.length; i++){
    a[i] = a[(a[i] + 3) % a.length];
}

9. Which of these statements is incorrect about Thread?

10.  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();
}
} 

11. Find the output of the following program.

class output {
public static void main(String args[]) 
            {
                double a, b,c;
                a = 3.0/0;
                b = 0/4.0;
                c=0/0.0;
    	    System.out.println(a);              System.out.println(b);               System.out.println(c);
            } 
        }

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

        class recursion 

        {
            int func (int n) 
            {
                int result;
                if (n == 1)
                    return 1;
                result = func (n - 1);
                return result;
            }
        } 
        class Output 
        {
            public static void main(String args[]) 
            {
                recursion obj = new recursion() ;
                System.out.print(obj.func(5));
            }
        }

                            

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

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

15. What is Recursion in Java?