Exception in thread "main" java.lang.AssertionError: x < 0 at AssertDemo.main(AssertDemo.java:6) For either example, running AssertDemo without the -ea (enable assertions) option results in no output.

Here are the 10 most commonly encountered Java compile errors, along with the fixes that will get your code working in no time. Fix the 5 most common types of runtime errors in Java The key to ...