Can we overload java main() method?

Yes, by method overloading. You can have any number of main methods in a class by method overloading. But JVM calls main() method which receives string array as arguments only. Let's see the simple example:

class TestOverloading4{ 

public static void main(String[] args){System.out.println("main with String[]");} 

public static void main(String args){System.out.println("main with String");} 

public static void main(){System.out.println("main without args");} 

} 

Output:

main with String[]