public static void main

javaguru · 22-12-2009, 08:11 PM

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

javaguru · 22-12-2009, 08:12 PM

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 does not return anything so the return type must be void

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.

22-12-2009, 08:11 PM	#1
javaguru Member Join Date: Dec 2009 Posts: 50 Rep Power: 15	public static void main Expain the reason for each keyword of public static void main(String args[])?

22-12-2009, 08:12 PM	#2
javaguru Member Join Date: Dec 2009 Posts: 50 Rep Power: 15	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 does not return anything so the return type must be void 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.