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Difference between JDK 1.5 and JDK 1.6

Difference between JDK 1.5 and JDK 1.6

If you’re wondering what the difference is between JDK 1.5 and JDK 1.6, you’re not alone. Many people are confused about the differences between these two Java Development Kits. In this blog post, we’ll take a look at some of the key differences between these two versions of Java. We’ll also discuss why it’s important to upgrade to JDK 1.6 if you haven’t already done so. So without further ado, let’s get started!

What is JDK 1.5?

JDK 1.5, also known as Java 5, was released in September 2004 and introduced several new features to the Java language, including generics, annotations, autoboxing/unboxing, enumerated types, and the for-each loop. These changes greatly improved the functionality and ease of use for developers. JDK 1.5 also included performance improvements and support for older versions of Windows. Overall, JDK 1.5 provided a major update to the Java platform that has been widely adopted by developers.

What is JDK 1.6?

JDK 1.6, also known as Java SE 6 or Java 6, is a version of the Java Development Kit (JDK) released in 2006. It includes new features such as JDBC 4.0 support and JavaScript integration, as well as performance improvements and bug fixes. JDK 1.6 is no longer publicly supported, but developers can still use it if they are running older versions of Java applications. However, it is recommended to upgrade to a newer version for security reasons. JDK 1.6 reached its end of public support in February 2013, with the release of JDK 8.

Difference between JDK 1.5 and JDK 1.6

One of the main differences between JDK 1.5 and JDK 1.6 is the introduction of annotation processing in JDK 1.6. This allows for improved code organization and easier maintenance in large projects. Other improvements in JDK 1.6 include better performance, enhanced web services support, and new pluggable annotations.

Additionally, JDK 1.6 includes several security updates and enhancements. It is important to note that while JDK 1.6 offers these improvements, it also has reached its end-of-life and is no longer supported by Oracle since April 2013. It is recommended to upgrade to a newer version of the JDK for ongoing support and access to newer features and updates.


JDK 1.5 and JDK 1.6 are both Java development kits that allow you to create Java applications, but they have some key differences. The main difference between the two is that JDK 1.6 has a module system called Jigsaw, which allows you to break your code down into modules for better organization and manageability. If you’re currently using JDK 1.5 and want to move up to JDK 1.6, it’s important to be aware of these differences so you can make the switch without any trouble.

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