Learn how to use Java annotations to associate metadata ... or other elements in your Java code. For example, your team might need to identify unfinished classes in a large application.

When I first learned to program, it was grasping if statements that helped it all click into place for me. Once you can use if statements, you can build all kinds of useful and interesting tools.

Developers make assumptions about how our code will behave when executed, but we’re not always right. Without certainty, it is challenging to write programs that work correctly at runtime.

Note that the Java ternary operator example above could just have easily been written using an if…else statement. The code below performs that exact same logic as the Java ternary operator example ...