How do I run a Java program from the command line on Windows?

by

Source: javaindos.

Let’s say your file is in C:\mywork\

Run Command Prompt 

C:\> cd \mywork

This makes C:\mywork the current directory.

C:\mywork> dir

This displays the directory contents. You should see
filenamehere.java among the files.

C:\mywork> set path=%path%;C:\Program Files\Java\jdk1.5.0_09\bin

This tells the system where to find JDK programs.

C:\mywork> javac filenamehere.java

This runs javac.exe, the compiler. You should see nothing but the
next system prompt…

C:\mywork> dir

javac has created the filenamehere.class file. You should see
filenamehere.java and filenamehere.class among the files.

C:\mywork> java filenamehere

This runs the Java interpreter. You should then see your program
output.

If the system cannot find javac, check the set path command. If javac
runs but you get errors, check your Java text. If the program
compiles but you get an exception, check the spelling and
capitalization in the file name and the class name and the java
HelloWorld command. Java is case-sensitive!

More Related Contents:

  1. java if else errors not working properly
  2. how can i send the string value into the intent.putextra? [duplicate]
  3. Java new keyword
  4. What is @ModelAttribute in Spring MVC?
  5. What is the difference between up-casting and down-casting with respect to class variable
  6. JAXB: how to marshall map into value
  7. Where is Java’s Array indexOf?
  8. Thread Safe singleton class
  9. what is the Class object (java.lang.Class)?
  10. CORS allowed-origin restrictions aren’t causing the server to reject requests
  11. Java – How to drag and drop JPanel with its components
  12. How to parse month full form string using DateFormat in Java?
  13. JAXB creating context and marshallers cost
  14. What’s the best way to parse an XML dateTime in Java?
  15. Field.get(obj) returns all nulls on injected CDI managed beans, while manually invoking getters return correct values
  16. Java Generic List
  17. java string split on all non-alphanumeric except apostrophes
  18. Is it possible to cast a Stream in Java 8?
  19. Java 11 package javax.xml.soap does not exist [duplicate]
  20. Editing PDF text using Java
  21. How do you convert binary data to Strings and back in Java?
  22. How to display faint gray “ghost text” in a JTextField?
  23. Creating LinearLayout Programmatically/Dynamically with Multiple Views
  24. How to annotate enum fields for deserialization using Jackson json
  25. Purpose of third argument to ‘reduce’ function in Java 8 functional programming
  26. Android’s HttpURLConnection throws EOFException on HEAD requests
  27. Benefits of 64bit Java platform
  28. Loading Drools/KIE Workbench artifacts directly from the repository
  29. Any way to generate ant build.xml file automatically from Eclipse?
  30. Which JRE am I using?

Leave a Comment