The method now has fewer parameters and the parameters it does have are all of distinct types. IDEs and the Java compiler can now be especially helpful in ensuring that clients use this interface ...

Hiding Java method deprecation problems There are plenty of deprecated methods in Java, and there’s nothing stopping you from calling them. Sure, a yellow yield sign might appear in the line-number ...

A Java class inherits these methods and can override any method that’s not declared final. For example, the non- final toString() method can be overridden, whereas the final wait() methods cannot.