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
$

I thoughtjavac was just the compiler, then once it's compiled you run your program with java — Nick Weinberg, Jul 10 '16 at 14:32
Please don't post screenshots of text. Instead, paste the text directly into your question and use the formatting tools. — terdon, Jul 10 '16 at 14:53

Zanna · Answer 1 · 2016-07-11T07:52:49.543

18

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

edited Jul 11 '16 at 07:52

answered Jul 10 '16 at 14:38

Zanna

70,465

1

@Zannas answer is correct. But, if you just want to see some output, you can use the -verbose option. – Frisky Jul 10 '16 at 18:12

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

1 Answers1

Linked