What are the the new features in J2SE 7 or java 1.7 ?

by Anuj Verma · 14/01/2018

Java SE 7

Java 7 (codename Dolphin) is a major update that was launched on July 7, 2011 and was made available for developers on July 28, 2011.

The development period was organized into thirteen milestones.

Strings in switch
Concurrency utilities
Automatic resource management in try-statement
Improved type inference for generic instance creation, aka the diamond operator <>
Simplified varargs method declaration
Allowing underscores in numeric literals
Binary integer literals
Catching multiple exception types and rethrowing exceptions with improved type checking
Timsort is used to sort collections and arrays of objects instead of merge sort
New file I/O library adding support for multiple file systems, file metadata and symbolic links. The new packages are java.nio.file, java.nio.file.attribute and java.nio.file.spi
Library-level support for elliptic curve cryptography algorithms
An XRender pipeline for Java 2D, which improves handling of features specific to modern GPUs
New platform APIs for the graphics features
Enhanced library-level support for new network protocols, including SCTP and Sockets Direct Protocol
Java Deployment Rulesets
Lambda (Java’s implementation of lambda functions)
Upstream updates to XML and Unicode

Java 7 was the default version to download on java.com from April 2012 until Java 8 was released.