Here's how to make classes, fields, methods, constructors, and objects work together in your Java programs.

You examined local variables, method parameters, and variable scope. You learned how to add data to classes using instance variables, and how that data is contained in each instance.

In Java, you can have a section of code inside a class definition that looks like this:code: static { // statements go here }and the statements will be executed when the class is loaded (sort of ...

Naming conventions are important if you're a Java developer. Naming conventions not only make your Java code easier to read, they make your code self-documenting as well. Fellow developers can tell in ...

The variable must be static, so there's only one for all of the function's execution. [Click on image for larger view.]Figure 1. Testing Out Code Variations at Runtime How can you change the value ...

Types of strings in Java Java distinguishes between primitive strings and object strings: Primitive strings. These are string literals or string calls from a nonconstructor context. A constructor is a ...

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.