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Java MainTest program

The MainTest program shows how the args array is used to access command line arguments.
Compile it and run it with the following command line:
java MainTest zero one two three
It displays the following output: 
args.length: 4
args[0]: zero
args[1]: one
args[2]: two
args[3]: three


class MainTest {
 public static void main(String[] args) {
  System.out.println("args.length: "+args.length);
  for(int i=0;i<args.length;++i)
   System.out.println("args["+i+"]: "+args[i]);
 }
}