Java 9 CompletableFuture API improvements – delayedExecutor
Java 9 introduces a couple of improvements in CompletableFuture API. Today let’s take a look at new delayedExecutor static method.
Java 9 CompletableFuture API improvements – orTimeout
One of the improvements in Java 9 CompletableFuture is the orTimeout method:
CompletableFuture orTimeout(long timeout, TimeUnit unit)
Java 9 Diamond Operator with Anonymous Inner Classes
Diamond operator ‘<>’ was introduced in Java 7 to make instantiation of generic classes easier.
Java 9 Using effectively-final variables in the try-with-resources
In Java 9 try-with-resources statement has been improved. Now if you already have final or effectively final resource you can use it in try-with-resources statement without need to declare a dummy variable.
Java 9 Disallowed underscore [ _ ] as a one-character identifier
Before Java 9 we could have underscore [ _ ] as a one character identifier.
Java 9 private interface methods
In Java SE 9 interfaces can have private and private static methods.
Java 9 Convenience Factory Methods for Collections
Java 9 enhances the java collections and provides static methods for creating small immutable collection instances.
Java 8 Comparator
On java 8 Comparator interface there are new default methods using which compare objects in declarative way.
Java 8 streams collector groupingBy
Suppose we have a List of strings and want to group them by length.
We can use Collectors.groupingBy() for this task.
Understanding byte encoding and decoding in Java
Understanding encoding in details and various encoding mechanisms.