Create the first Java program: Hello, World!

tags: java

Create a new Java file
- File suffix name .java
- Hello.java
Write code

public class Hello{
	public static void main(String[] args){  // Shortcut: PSVM or Main
		System.out.print("Hello,World!");    // Shortcut: Sout
	}
}// Class class, main method, String [] args parameter

Compiling Javac Java files to generate a class file
Compile the Java Class file, run the class file

Must pay attention to problems

The case of each word cannot be problematic, Java is sensitive
Try to use English
File names and class names must be guaranteed, and the initials are capitalized
Symbols must be in English

Idea setting:

file–>new–>model
java–>jdk
Project structure-> Project -> (Configure the environment)
src–>new–>java class
Debug: Click on the point -> Click Debug
Comment words:

Note Source:Sprenzy, Java

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