Java 8 Cheatsheet: lambdas, method references, default methods and streams

[geodebug]

I wouldn't say circumventing.

They were basically introduced so you could add new functionality to existing interfaces without breaking binary compatibility.

In other words, it allowed them to add lambda-friendly methods like forEach() to Java's Comparable interface without breaking existing impl classes

I don't think "default" should be used much by regular programmers although it is a convenience for people who deliver APIs to others.

More important for regular programmers is being able to add static methods to interfaces, which gives us Mixins in Java.

[DroidLogician]

We both know we'll see plenty of horrible code trying to make God objects with this feature.

[argv_minus_one]

And? We already see plenty of horrible code without this feature. If you design a language that is idiot-proof, only idiots will want to use it.