Java 8 is the latest version of the popular programming language, built to replace its predecessor, Java 1.8. With new features and changes to the language, it’s important to understand the differences between both versions of the language and how upgrading to Java 8 can benefit you. In this article, we will look at what makes Java 8 different from 1.8, the benefits and drawbacks of upgrading to Java 8, how to upgrade, common mistakes made when upgrading, performance benefits when using Java 8, and tips for utilizing Java 8 efficiently.
New Features of Java 8
Java 8 is a major release from Oracle and comes with many new features and changes which were not present in the previous version. One of the main features which separates Java 8 from its predecessor is the introduction of functional programming capabilities. This allows developers to take advantage of various functional programming paradigms such as lambda expressions, streams, optionals as well as other features like date and time API and more. This increase in functional programming capabilities also allows for parallel processing, which can significantly reduce the time needed to perform certain tasks.
What Is Java 1.8?
Java 1.8 is an earlier version of the language, released in 2014 by Oracle. It had a very successful 5 year run, with many developers relying on its dependability and stability. The language was fairly versatile, but lacked the modern features that Java 8 had such as the functional programming capabilities and other added security measures. It is no longer officially supported by Oracle.
Despite its lack of modern features, Java 1.8 was still a popular choice for many developers due to its stability and reliability. It was also widely used in enterprise applications, as it was able to handle large amounts of data and transactions. Additionally, Java 1.8 was compatible with a wide range of operating systems, making it a great choice for cross-platform development.
Comparing Java 8 and 1.8
In addition, Java 8 has improved the security of the language by introducing the Java Security Manager. This feature allows developers to control the access of code to system resources, ensuring that malicious code cannot be executed. Java 8 also includes a new garbage collector, which helps to improve the performance of applications by reducing the amount of memory used.
Advantages and Disadvantages of Upgrading to Java 8
There are both advantages and disadvantages to upgrading to Java 8. One of the main advantages is that it offers greater performance due to its enhanced functional programming capabilities. The language also introduces many new APIs which give developers a wider range of tools to work with. On the other hand, many developers are hesitant to switch to the new version because there is a learning curve associated with it and they don’t want to go through the effort of relearning the language.
Another disadvantage of upgrading to Java 8 is that it may not be compatible with existing applications. This means that developers may need to spend time and resources to make sure their applications are compatible with the new version. Additionally, some of the new features may not be supported by older versions of Java, so developers may need to upgrade their systems in order to take advantage of the new features.
How to Upgrade from 1.8 to Java 8
The process of upgrading from 1.8 to Java 8 is fairly straightforward. Firstly, it’s important that you backup any existing code base you currently have in 1.8 so you can revert in the case of any issues when upgrading. To upgrade, you need to install the JDK 8 and JRE 8, as well as tools like IntelliJ and Eclipse IDE for better coding experience. After this is done, start gradually rewriting parts of your codebase to take advantage of the new features and APIs present in Java 8.
It is also important to ensure that all of your dependencies are compatible with Java 8. If you are using a dependency manager like Maven or Gradle, you can check the compatibility of your dependencies by running a dependency report. Additionally, you should also check the compatibility of any third-party libraries you are using. Once you have verified that all of your dependencies are compatible, you can proceed with the upgrade.
Common Mistakes When Upgrading to Java 8
When upgrading to Java 8, there are some common mistakes that should be avoided. Firstly, some developers may completely rewrite their codebase at once instead of gradually migrating over time. This could cause problems as some parts of your codebase may not be compatible with new versions of Java 8 or may need further tweaking. Secondly, along with the language changes come changes in APIs which may not be well documented. It’s therefore important to understand these changes before attempting any coding yourself.
Performance Benefits of Using Java 8
Due to its enhanced functional programming capabilities, Java 8 offers significant performance benefits when compared to earlier versions. The language has been optimized for multicore processors and can where possible run multiple threads of code simultaneously. This is due to the introduction of lambda expressions and streams which allow for easier parallel processing. Additionally, certain APIs are now more optimized than before so your code can take advantage of libraries with better memory management and more efficient algorithms.
Security Considerations When Upgrading
While upgrading your codebase to take advantage of new features in Java 8 offers improved performance and a better coding experience, it is important that some security considerations are taken into account. For instance, make sure any new code you write is well tested for any security vulnerabilities before it gets deployed into production. Additionally, make sure you keep all libraries updated with any new security patches as they are released.
Tips for Efficiently Utilizing Java 8
Finally, here are some tips for efficiently utilizing Java 8: When working with multi-threaded programs, make use of locks and synchronization primitives to allow for efficient access to shared resources; make sure you instrument your code with logging before deployment; always read up on the new APIs available in the language before using them; and utilize parallel processing when possible to improve performance.
In conclusion, understanding the differences between both versions of Java is invaluable in helping you decide whether or not you should upgrade your codebase or start a new project in Java 8. The added performance benefits and extensive feature set of the language make it worth considering if you’re considering a transition from 1.8.