Java Note--helloworld

 Public class Test {            publicstaticvoid  main (String args[]) {        System.out.println ( "123");}    }

Attention:

1. Each Java file is a class that is used to write the code directly for the framework that automatically generates the main function. In fact, just the framework of the class, the main function or need to write their own.

2.main function of the default parameters and return type must pay attention to forget to write the main function parameters, so that the compilation does not pass, stay for a long time, can not find a solution.

Java Note--helloworld