An interface type’s data values are the objects whose ... and ensures that binary compatibility isn’t broken. Before Java 8, a Java application consisted of at least one class that declared ...

Type inference, introduced in Java 7, allows the Java compiler ... subclass of Animal and implements the Walker interface. Using multiple bounds (T extends Animal and Walker) ensures the simulated ...

the Consumer interface accepts any type of object as input. The java.util.function.Consumer class has one non-default method named accept which takes a single object as its argument and has a void ...

the object type isn’t required on the left hand side, and if the lambda expression is one line long, both the brackets and the return keyword can be omitted. So a more concise lambda expression that ...