what is the mening of public static void main in java

why  public static void main ( string [] args ) used in java  

public: 

public is a access specifier .it means from every where we can access it. main function access modifier must me public.so it can be found by jvm ,when the class is loaded.

Static: 

static means we can call this method directly using class name,without creation an object.main method must be static for call this method after load the class.[we are not create main method object so for main method we used static]

void:

Every function has a return type.it can be int,float,double,string . but in java main method return type must be void.

string[]args :

string is a pre-define class in java.java accept only string type of argument,and args is a name of this string.we can used another it not a fact.
EX: string[] xyz, string xyz[].