Problem : How to start notepad from a java program?

Step 1 - CODING
Create a text file c:\sunilos\MySystem.java  and copy below contents

/*
 */

public class MySystem {
   
    /**
     * Launch and native application notepad.exe
     * @param args
     * @throws Exception
     */
   
    public static void main(String[] args)throws Exception{
        Runtime.getRuntime().exec("notepad.exe");
    }

}

Step 2 - DEPLOYMENT

1. Create a folder 'c:\sunilos'. 
2. Create or copy MySystem.java  into 'c:\sunilos' folder.
3. Open your command prompt and go to  'c:\sunilos'
   
4. Compile MySystem.java with help of javac MySystem.java command.  Compiled class file will be created in  .\sunilos\MySystem.class folder
   
5. Congratulations!! your Java program is ready to serve.

Step 3 - Testing

1. Make sure you are on Command Prompt under c:\sunilos directory
   
2. Now start your java program from command prompt with help of 
• java MySystem command.

Output

It will open Notepad


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