How to throw RuntimeException (“cannot find symbol”)

Question

I\'m trying to throw an exception in my code like this:

throw RuntimeException(msg);

But when I build in NetBeans I get this error:

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Answer 1

An Exception is an Object like any other in Java. You need to use the new keyword to create a new Exception before you can throw it.

throw new RuntimeException();

Optionally you could also do the following:

RuntimeException e = new RuntimeException();
throw e;

Both code snippets are equivalent.

Link to the tutorials for completeness.