I get no output when I compile Java code from the Terminal

Question

When I try to run my Hello World program it doesn't show any output:

$ ls
hello.class hello.java 
$ javac hello.java
$

Solution

You can see from ls that you already compiled your program with the compiler javac. The command you used

javac hello.java

creates hello.class without sending any output to stdout, so there won't be any messages in your terminal unless there are errors - what you see is the expected behaviour. If you actually want to see some output, you can add an option: javac -verbose hello.java as mentioned by @Frisky (thanks!)

Now you can run that file hello.class with

java hello

Comments

[Nick Weinberg]

I thoughtjavac was just the compiler, then once it's compiled you run your program with java

[karel]

Possible duplicate of How to run a Java program in Ubuntu

[terdon]

Please don't post screenshots of text. Instead, paste the text directly into your question and use the formatting tools.

[cat]

@terodactyl fixed

[Frisky]

@Zannas answer is correct. But, if you just want to see some output, you can use the -verbose option.