What is the difference between Java 8 and Java 9?

Java 8 has Java Time API and Java IO improvements, whereas Java 9 has Money and Currency API updates. Java 8 has other features, such as an extension to the Comparator interface, whereas Java 9 has improved Javadoc documentation and the Java platform module system.

Is Java 9 backward compatible?

Java 9 introduces a modular system which is moving away from today’s monolithic Java SE platform. Backward compatibility is one of the main priorities and the Oracle engineering team has worked on a smooth transition to Java 9. Nonetheless, there are a number of key changes that you need to understand.

Is Java 8 backwards compatible?

Yes, as always. Java8 is backward compatible with its all earlier version. That’s one of the strong thing in Java that makes Java so successful.

Is Java always backwards compatible?

For the most part, Java is a very backwards compatible programming language. Even with Java’s relatively strong tie to backwards compatibility, there are differences in each major release of Java that can break Java-based applications when they are upgraded.

Why is Java 8 used?

Long Term Support (LTS) Version One of the key reasons why Java 8 is still so popular is that it is an LTS (or Long-Term Support) version. From a commercial point of view no organisation should be considering putting a system into production that relies on a version of Java that does not have LTS.

Is Java 9 released?

Java 10 a previously supported rapid release version, had its support ended in September 2018 the same date support for Java 11 began….Release table.

Version	Java SE 9
Release date	September 2017
End of Free Public Updates	March 2018 for OpenJDK
Extended Support Until	N/A

Is Java 11 backwards compatible?

While the Java 11 compiler behaves exactly as you would expect and prevents illegal access, the same is not true for the run time. To offer a modicum of backwards compatibility it eases migration and improves the chances of applications built on Java 8 to run on Java 11 by granting access to internal classes.

Is JVM backwards compatible?

Backward Compatibility Java versions are expected to be binary backwards-compatible. For example, JDK 8 can run code compiled by JDK 7 or JDK 6. It is common to see applications leverage this backwards compatibility by using components built by different Java version.

When did Java 8 release?

Java SE versions history

Java SE Version	Version Number	Release Date
Java SE 7 (Dolphin)	1.7	July 2011
Java SE 8	1.8	March 2014
Java SE 9	9	September, 21st 2017
Java SE 10	10	March, 20th 2018

Is Java 1.8 the same as 8?

In JDK 8 and JRE 8, the version strings are 1.8 and 1.8. Here are some examples where the version string is used: java -version (among other information, returns java version “1.8.

What are the new features in Java 8?

Six Important New Features in Java 8 (JDK 8)

• Permanent Generation.
• Parallel Array Sorting.
• Base64 encoding and decoding.
• Date & Time API.
• Functional Interfaces.
• Lambda expressions.

Is Jdk forward compatible?

Upward binary compatibility (or forward compatibility) – an ability of clients built with a new version of library API to run on old one (wiki). The general Sun’s document about JDK Incompatibilities in J2SE 5.0 since 1.4.