Why do I need the public static void main (string[] args) method?

Why public static void main（String[ ] args） This method ？

    public static void main（String[ ]args） by Java The entry method to the program ,JVM When running a program , Will look for main() Method . among ,public It's a permission modifier , Indicate any · Classes or objects can access this method ,static indicate main（） Method is a static method , That is, the code in the method is stored in the static storage area , As long as the class is loaded , You can use this method without having to instantiate an object to access , You can use the class name directly .main（） Direct access ,JVM Follow the above method when signing at startup （ There has to be public And static modification , The return value is void, Method when the parameter is a string array ） To find the entry address of the method , If you can find , Is executed ; Can't find , May be an error .void Indicates that the method has no return value ,main yes JVM The name of the special method recognized , Is the entry method of the program . String array parameters args It provides a means for developers to interact with programs in the command-line state .

     because main Is the program waiting for the entry method , So when the program runs , The first way to do it is main（） Method . Generally speaking , To execute a method of a class , First you must instantiate an object of a class , Then call this method through the object . But because of main Is the entry method of the program , The object has not been instantiated yet , So I'm writing main（） Method requires that this method can be called without instantiating the object , In view of this ,main（） Methods need to be defined as public And static. The following shows how to main（） Method is the method of passing parameters .

    public class T