Java Server pages(JSP) embeds in

What are the access specifiers that can be used for interface in java.

Which of these Java interfaces define a method actionPerformed()?

Which concept of Java is achieved by combining methods and attributes into a class?

class test{

public static void main (String[] args) {

   String s1=new String("Hello");

   String s2="Hello";

   System.out.println((s1==s2)+" "+(s1.equals(s2)));

}

}

Which of the following can cause a memory leak?

public class outputs 

    {

        public static void main(String args[]) 

        {

            int a=10;

int b=20;

int c=30;

int sum=0;

sum= a++ + b++ + b*c++ + a*c++ ;

System.out.println(++sum);

        } 

    }

Which of the following are valid calls to Math.max?

What is the output of the following code?

class Test

{

public static void main(String args[])

{

char chars[] = {'a', 'b', 'c'};

String s = new String(chars);

String s1 = "abcd";

int len1 = s1.length();

int len2 = s.length();

System.out.println(len1 + " " + len2);

}

}

    import java.util.*;

    class output 

    {

        public static void main(String args[]) 

        {

            LinkedList obj = new LinkedList();

            obj.add("A");

            obj.add("B");

            obj.add("C");

            obj.removeFirst();

            System.out.println(obj);

        }

    }