Ever come across the null pointer exception in Java? We explain what this error message means, why it happens, and how to avoid the billion-dollar mistake.

Not sure what a try catch is? We explain how to use a try catch block in Java and how to write methods that throw exceptions.

Don't let the complexities of Java Exception handling get you down. Follow these top 10 Java Exception handling examples and you'll be an expert in handling errors in your Java code.

Here's everything you need to know about Java operators and operator types, and how to use them to write expressions for your Java programs.