JDK 1.5 vs JDK 1.6: Difference and Comparison

Several software systems had used to develop and execute a program. Programming languages like Python, C, C++, Java, and others help in coding.

JDK is a programming development kit in Java. There are several versions and updates in Java. JDK 1.5 and JDK 1.6 are the two kinds of versions of Java.

Key Takeaways

  1. JDK 1.5 introduced new language features like generics, enhanced for loop, and autoboxing, while JDK 1.6 focused on improving performance, stability, and security.
  2. JDK 1.6 included updates to the Java virtual machine (JVM), better garbage collection, and support for dynamic scripting languages.
  3. JDK 1.5 is no longer supported, while JDK 1.6 is only supported for legacy applications.

JDK 1.5 vs JDK 1.6 

JDK 5 introduced new features and improvements to the Java language, including generics, annotations, for-loops, and improvements to the JVM. JDK 1.6 was released in 2006 and introduced new features and improvements, such as scripting languages, web service enhancements, and improved JVM performance.

JDK 1.5 vs JDK 1.6

JDK 1.5 is an evolved version of Java 5. Java platform presents various kinds of versions in software development. Depending on the technology, the Java platform will update its features.

Java 5 has its characteristics, whereas 1.5 is a Java Development Kit. This kit had developed with the versions by Oracle Corporation. The JDK 1.5 consists of tools that are useful for testing Java coding. 

In contrast, JDK 1.6 is the development kit with an updated Java 6. JDK has stability and security levels and runs the code quickly using testing tools.

Java 6 is the product version, whereas Java Development Kit 1.6 is a developed version. 

Comparison Table

Parameters of Comparison JDK 1.5 JDK 1.6 
Definition It is a development kit of Java that helps in testing the Java 5 version coding. JDK 1.6 is an evolved version of Java 6 in a programming language. 
Corporation JDK 1.5 had developed under the Oracle corporation. Oracle authorizes the JDK 1.6 version.  
Invention JDK 1.5 had initially released in 2004 September. It had released in 2006 December under Oracle corporation. 
About JDK 1.5 is used as an interior version under the J2SE 5 version. It is updated by having authority, stability and securing by running a code in Java. 
Label The JDK 1.5 is from the J2SE 5, which had labelled as Tiger in Java platform.  It had obtained by Java SE 6 that named Mustang. 

What is JDK 1.5? 

JDK is a version of Java coding having kinds of updated testing tools. It was popularly known as Java Development Kit for the Java platform.

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The JDK versions will release according to the updates by Oracle Corporation in the Java platform. JDK stands for Java Development Kit, where it consists of testing applications.

JDK 1.5 was an updated version of Java 5, where both belong to the Java 2 platform. It is a standard Edition of Java corporates by Oracle. JDK 1.5 is helpful for programming for Java 5, which has stability and authority levels.

The JDK 1.5 was used to develop and test the coding programs in Java and runs on the Java platform. 

The JDK 1.5 developed version had initially released in September 2004. JDK have various numbered versions. So the JDK 1.5 differs from others by having some features. They are 

  • Enhanced tools for Loop 
  • Garbage collectors 
  • Steady import 
  • Automatic boxing and unboxing 
  • Generics 
  • Schema 
  • Numeration 

The above features can find in the Java Development Kit 1.5. However, the support from the public and Oracle customers gave up between 2009- 2015, but even now, it supports an internal version. This kit had developed with the versions by Oracle Corporation.

What is JDK 1.6? 

As aware of the platform, JDK 1.6 was the developed version of Java 6. It supports Java Standard Edition 6 by testing and running the programs.

The Java Development Kit 1.6 was declared in November 2006 and is a developed version of Java 6. It had obtained by Java SE 6 named Mustang.

JDK 1.6 had called the matured version because the testing tools and features had updated ones compared with Java 6. It is primarily represented as JDK 1.6.0, which comes under J2 Standard Edition.

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But the Sun was renamed by removing the 0 from J2SE to Java SE. This JDK 1.6 indicates the Java search engine’s majority, stability and security.

It runs the code rapidly and consists of testing applications. JDK 1.6 will work fast and run the programs with rapid speed compared with JDK 1.5

Usually, JDK 1.6 supports the Java 6 version updating the security and public updates. But the Java 6 version was concluded in April 2013 by stopping the services.

Although Java brought the brand new JDKs to the other versions, although the JDK 1.6 version had been used in the Java platform, it had been released under the Oracle association. Some of the features of the JDK 1.6 are 

  • Enhancing the framework 
  • A vernacular platform for security 
  • Swing combination with Desktop by utilizing the Windows API 
  • Self-Loading of Java Database Connectivity drive 

The above features had added to the developed JDK version compared with the Java SE 6. The JDK 1.6 is smoother and runs the program rapidly compared to the previous version. 

Main Differences Between JDK 1.5 and JDK 1.6 

  1. JDK 1.5 is the progressed version of Java 5, whereas JDK 1.6 is the updated version of Java 1.6. 
  2. JDK 1.5 was declared in September 2004, whereas JDK 1.6 was released in December 2006. 
  3. Although both had been released under the Oracle association, JDK 1.6 runs trouble-free and faster than JDK 1.5. 
  4. JDK 1.5 version was developed under Java 5 Tiger, whereas JDK 1.6 progressed to Java 6 Mustang. 
  5. Both JDK 1.5 and JDK 1.6 supports the Java programming platform, they concluded in different years. 
  1. https://dl.acm.org/doi/abs/10.1145/1297846.1297902
  2. https://www.usenix.org/event/sec08/tech/full_papers/tan_g/tan_g_html/
  3. https://dl.acm.org/doi/abs/10.1145/1294325.1294344

Last Updated : 11 June, 2023

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2 thoughts on “JDK 1.5 vs JDK 1.6: Difference and Comparison”

  1. The article is useful; it clearly represents the main differences between JDK 1.5 and JDK 1.6 and elaborates on their key features and updates.

  2. The illustrations comparing JDK 1.5 and JDK 1.6 are truly helpful to understand the evolution of Java Development Kit. It provides clarity on the significance of each update.


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