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

        class A 

        {

            public int i;

            protected int j;

        }    

        class B extends A 

        {

            int j;

            void display() 

            {

                super.j = 3;

                System.out.println(i + " " + j);

            }

        }    

        class Output 

        {

            public static void main(String args[])

            {

                B obj = new B();

                obj.i=1;

                obj.j=2;   

                obj.display();     

            }

       }

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

        class output 

        {

            public static void main(String args[])

            {

                String a = "hello i love java";

                System.out.println(a.indexOf('i')+" "+a.indexOf('o') +" "+a.lastIndexOf('i')+" "+a.lastIndexOf('o'));

            }

        }

3. 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);

            }

       }

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

        class recursion 

        {

            int func (int n) 

            {

                int result;

                result = func (n - 1);

                return result;

            }

        } 

        class Output 

        {

            public static void main(String args[]) 

            {

                recursion obj = new recursion() ;

                System.out.print(obj.func(12));

            }

        }

5. 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);
            } 
        }

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

7. What is the default value of String variable?

8. 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));
            }
        }

                            

9. Which of these data types is used to store command line arguments?

10. 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);
}
} 

11. What is Recursion in Java?

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

13. What is the value returned by function compareTo() if the invoking string is less than the string compared?

14. 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] + " ");

            } 

        }

15. 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++;

                }

            } 

        }