Expain each keyword of public static void main(String args[])?

Posted By: Avi

Date: 9 November 2009 06:12:58 AM

Answer:

public: main() is the first method called by java environment when a program is executed so it has to accessible from java environment. Hence the access specifier has to be public. static: Java environment should be able to call this method without creating an instance of the class, so this method must be declared as static. void: main() method does not return anything so the return type must be void. args[]: The argument String indicates the argument type which is given at the command line and arg[] is an array for string given during command line.
Posted By: eTechPlanet	Date: 9 November 2009 06:12:58 AM
public static void main( String[] args ): 1. public - declares that the main method is publicly accessible to other classes. 2. static - declares that the main method can be invoked without creating an instance of the class. 3. void - declares that the main method does not return any value. 4. main - defines the name of the method. 5. String[] args - defines a parameter to the main method which will contain any command line options passed by the user when invoking the program. These command line options will be passed to the program as an array of string objects.
Posted By: Johndecruse	Date: 17 February 2010 12:29:47 AM