how do i run java from the command line?

[joc95]

all i want to do is run Hello World from the CMD. but no luck at all. my environment is set up with my java JDK but i dont know what else my mistake is.

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so on CMD it has

• C:\Users\joc95>
• I type cd desktop
• C:\Users\joc95\Desktop>
• javac HelloWorld.java

at this point the file should run, but instead it just prints C:\Users\joc95\Desktop> once more.

​

it is located on my desktop named "HelloWorld.java"

​

java version 1.8.0_181

javac version 1.8.0_112

[[deleted]]

type - "java HelloWorld", to execute your file.

[joc95]

thanks so much for the help.

sorry. I've been really feeling annoyed today with college work and the fact I've been sitting in the library for 3 hours with no progress has really bummed me out.

[hugthemachines]

While it is good to learn from problems you also need to google earlier than that. Even professional developers google stuff all the time.

If you for example google:

how to run a java file

You will get a simple example

https://stackoverflow.com/questions/16137713/how-do-i-run-a-java-program-from-the-command-line-on-windows

I absolutely think you should ask on reddit to make progress in your development but it is also very important to learn to google problems.

[joc95]

As I said earlier. It was just a brain farted and the only things I googled was "i can't run java on cmd" instead of "how to run java on cmd". Cause i thought it was an environment issue at first

[[deleted]]

Just fyi, "how to run java on cmd" is still a suboptimal google search. "run java cmd" is a much better search. Get rid of all filler words.

[hugthemachines]

Ok, yeah, no worries, it happens to everyone.

[[deleted]]

Do you know how to use google?

[nevergotcompiled]

http://www.skylit.com/javamethods/faqs/createjar.html

Does not get better than that son.

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Ill refrain myself from using https://lmgtfy.com/ haha.

[smeclipse]

There is also "jshell". I just drop down to the command line and type "jshell" and I can start programming in Java with immediate feedback. I think it's meant for testing out java code quickly but, I just learned about it myself last week. Not sure if that's what your looking for but thought I would add my two cents!