Many developers get intimidated when they look at all the new APIs that accept lambda expressions as arguments, and wonder how they’ll ever figure out which Java function to use and what the proper ...

See the Java 101 Java interfaces tutorial for a more in-depth introduction to using interfaces in your Java programs, including where and where not to use default, static, and private methods.

Java allows classes to implement multiple interfaces — a capability known as multiple interface inheritance. Suppose you want to write a program that counts the number of times you have failed ...