java theory problems

Question 15:   

      What does JDK and IDE stand for?

  JDK stand for java development kit.

IDE  stand for integrated development environment

               

 Question 16:      Is Java case sensitive? What is the case for Java keywords?

Ans Yes java is case sensitive language it means it can differentiate b/w upper and lower case.

Java keywords written in lower case.

Question 17:

                 What is a comment? Is the comment ignored by the compiler? How do you denote a comment line and a comment paragraph?

Ans: Comments are written to understand the program.

   Yes comments are ignored by compiler when the program is executed.

For line // This statement take input from the user

For paragraph    /* This statement take input

                     From the user*/

 Question 18:

                  What is the statement to display a string on the console?      

Ans:

          System.out.println(“ALLAH IS ONE”);

      

  This print on console        ALLAH IS ONE

Question 19:

              What is next line and end of line style.

Next line style.

        public class Test

{

public static void main(String[] args)

{

System.out.println("Block Styles");

}

}

End line styel.

public class Test {

public static void main(String[] args) {

System.out.println("Block Styles");    }}