How to run java program

Method: 1. Create a new java file containing program code in the desktop; 2. Open cmd and execute the "cd Desktop" command to enter the desktop; 3. Execute the "Java file name.java" command to compile; 4. Execute the "java file name" command to run the java program.

The operating environment of this tutorial: windows7 system, java10 version, DELL G3 computer.

To run a java program, we must first write a java program. Since what we are talking about here is just the running of the java program, I will start with a simple program!

1. Open your own notepad and enter the following code:

import java.util.*;
public class HelloWorld{
  public static void main(String[] args){
    System.out.println("HelloWorld");
    }
}

##Select file---->Save as

File name: HelloWorld.java

File type: all files

[Remember where your files are saved here]

For convenience, I saved my first java program on the desktop.

2. Open the attachment --->Command Prompt

Type [cd Desktop] and press [Enter key]

[This step is to enter the desktop. That is the location where you save the file]

3. Type [javac HelloWorld.java]

[This step is to compile your own java program]

4. Type [java HelloWorld]

[This step is to run your own java program]

Then you can see the running results Got it!

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java video tutorial"

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