What is java program?

/*Simplest of the java program*/

//By Saurabh Prakash

class simple program

{

public static void main(String args[])

{

System.out.println(“you are learning ”);

}

}

Line1:-/* Simplest of the java program*/. The description written in /* and */ is called comment. The comments are for explaining the program. The comments are not executed by java.

Line2:-//By Saurabh Prakash

The description written after // is also a comment. There is no need to close the comment line by //.

Line3:- class simple program

This line declares a class which is an object oriented. Everything is placed inside the class. The word class is a keyword. Simple program is a name of which is called identifier which specifies the name of class to be defined. The program always start with opening braces ’{’.

Line4:- public static void main(String args[])

This line defines a method named main. A java program must include this main() method. String args[] declares a parameter named args which has an array of object of the class type String. We can also write it as String[]args. The above main method is followed by another opening brace.

Line5:-System.out.print(“you are learning”);

In the above program this is the only execution statement. The print method is a member of out object which is a static data member of system class. The string to be printed is kept in double quotes. The statement end with a semi colon. This statement will give the output you are learning.

Line6:-}, this is a closing braces to close the statement.

Line7:-}, every java program must end with a closing braces.