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How to Run Java Applications using the Windows Command Prompt.

How to Run Java Applications using the Windows Command Prompt. Julian Falasca May 11 th , 2010 ENGL 393. Introduction. Purpose: Most IS courses don’t touch this topic. Target Audience: Students already familiar with Java programming. (CMSC and IS majors) When to Use: On the job.

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How to Run Java Applications using the Windows Command Prompt.

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  1. How to Run Java Applications using the Windows Command Prompt. Julian Falasca May 11th, 2010 ENGL 393

  2. Introduction • Purpose: Most IS courses don’t touch this topic. • Target Audience: Students already familiar with Java programming. (CMSC and IS majors) • When to Use: On the job. • Safety Information: Don’t get too excited.

  3. Materials Needed • At least 1 valid java source file. (HelloWorld.java) • Must know where this file is located. • Java Development Kit (JDK) already installed. • http://java.sun.com/javase/downloads/index.jsp

  4. Step 1 • Click on Start, Programs, Accessories, and select Command Prompt.

  5. Example Command Prompt

  6. Step 2 • This example uses a java file which is located:D:\Workspace\HelloWorld.java • Type d: and press enter. • This command changes directories to the D drive.

  7. Example Command Prompt

  8. Step 3 • Type cd Workspace and press enter. • This takes you into the Workspace directory.

  9. Example Command Prompt

  10. Step 4 • Type dir and press enter. • This displays a list of files in the current directory. • Confirm that HelloWorld.java is in the list.

  11. Example Command Prompt

  12. Step 5 • Type javac HelloWorld.java and press enter. • This compiles the file, allowing you to run it. • A new file has been created named HelloWorld.class.

  13. Example Command Prompt

  14. Step 6 • Type java HelloWorld and press enter. • The Java application will run.

  15. Example Command Prompt

  16. Conclusion • Warranty Information: N/A • Technical Support: Lookup commands on google. • FAQs: • Why do I get the error “javac command not recognized”? • Most likely you have not installed the JDK correctly. • How do I go to the previous directory? • Type cd .. and press enter.

  17. Conclusion Continued

  18. Questions?

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