Java 1.8 Vs 1.7: Java Explained

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Java is one of the world’s most popular programming languages, offering many powerful features for software development. It is evolving continuously, with version 1.8, released in March 2014, offering a variety of new tools and capabilities compared to its predecessor, Java 1.7. In this article, we will look at what has changed between these two versions of Java, and discuss their different advantages and disadvantages.

Overview of Java 1.8 and 1.7

Java 1.8 is the second version of the Java 8 platform, which originally debuted in March 2014. It is based on the same core technology as 1.7, but has been enhanced and expanded to include a number of new features. Some of these additions include lambda expressions, virtual extension methods, support for several new file formats, improved debugging and diagnostic capabilities, as well as improvements to the Java memory model that help reduce garbage collection overhead.

Prior to Java 1.8, version 1.7 was the latest available version of the platform. This version of Java brought several changes, such as improved garbage collection, support for newer versions of the Java Runtime Environment (JRE), as well as better performance when running on multicore processors. It also introduced a number of other tools that greatly improved Java development such as multi-catch exceptions and type inference.

Java 1.8 also includes a number of security enhancements, such as improved authentication and authorization, as well as improved encryption and data integrity. These features help to ensure that applications built on the Java platform are secure and reliable. Additionally, Java 1.8 includes a number of new APIs that allow developers to create more powerful and efficient applications.

Major Differences Between Java 1.8 and 1.7

The most significant difference between these two versions of Java lies in the new features that have been added with Java 1.8. These include the addition of lambda expressions and the support for virtual extension methods. Lambda expressions enable developers to write complex code with less code. This makes it easier to understand and maintain, as well as helps to reduce development time.

The support for virtual extension methods allows developers to create extensions to existing classes without overwriting the original code. This means that existing code can be modified without having to rewrite the entire class. This feature also enables developers to take advantage of the new features available in 1.8 without having to learn a completely new platform.

Java 1.8 also brings an improved support for multiple file formats, improved debugging tools, and advancements in the Java memory model that make garbage collection more efficient. It also introduces a new Just-In-Time compiler that can better optimize code execution.

In addition, Java 1.8 also includes a new API for working with dates and times, as well as a new Stream API that allows developers to process data in a more efficient manner. These new features make it easier for developers to create more powerful and efficient applications.

Advantages of Using Java 1.8 Over Java 1.7

The biggest advantage that developers gain when using Java 1.8 is the ability to take advantage of all of its most powerful features without having to learn a completely new programming language. For example, lambda expressions provide developers with powerful function definition capabilities without requiring them to learn a new syntax or language construct.

The improved debugging functionality and diagnostic capabilities allow developers to identify and fix bugs with greater accuracy and speed. This can save a great deal of time when compared to the traditional debugging process used in earlier versions of Java. Additionally, the faster performance provided by Just-In-Time compilation allows developers to optimize code execution for better performance.

Finally, the improved garbage collection capabilities allow developers to reduce their memory usage. This can lead to better overall program performance and reduce latency when running large applications.

Java 1.8 also offers improved security features, such as the ability to use stronger encryption algorithms and better authentication protocols. This can help protect applications from malicious attacks and ensure that data is kept secure.

Disadvantages of Using Java 1.8 Compared to Java 1.7

One of the major drawbacks associated with using Java 1.8 is that it may have compatibility issues with older versions of the platform. If your application relies on features supported only in earlier versions of Java, then you may find it difficult or impossible to successfully migrate code bases to 1.8 without significant effort and time investment.

Additionally, due to its larger size and complexity, Java 1.8 is more likely to suffer from security issues than prior versions of the platform. As such, it is important to ensure that you are keeping your applications up to date with the latest security patches.

Furthermore, Java 1.8 may require more resources than earlier versions of the platform. This can lead to slower performance and increased costs for hosting applications on the platform. Additionally, the larger size of the platform can lead to longer download times for users, which can be a major inconvenience.

Best Practices for Migrating to Java 1.8

When migrating from an earlier version of Java to Java 1.8, there are several steps that should be taken in order to ensure a successful migration. The first step is to audit existing code base for existing reliance on any deprecated features from earlier versions of the platform so that any required modifications can be made before the migration process begins.

Another important step is to develop a detailed plan for the upgrade process so that it can be completed without any unforeseen issues or delays. Finally, test the application in a variety of different environments before rolling out the changes to your production system.

It is also important to ensure that all necessary libraries and dependencies are updated to the latest version of Java 1.8. This will help to ensure that the application is running optimally and that any potential compatibility issues are addressed. Additionally, it is important to monitor the application closely after the migration is complete to ensure that any potential issues are identified and addressed quickly.

Tips and Tricks for Working with Java 1.8


When working with Java 1.8, there are a few tips and tricks that can make development easier and more efficient. One way to reduce confusion is to create separate classes for different types of functionality within an application so as not to mix different aspects of programming.

Additionally, it’s important to take advantage of the improved debugging capabilities offered by this version of Java in order to identify any potential issues quickly and easily. Finally, don’t forget the importance of testing your application thoroughly before deploying it into production.

It is also important to take advantage of the new features offered by Java 1.8, such as the Stream API, which can help to simplify code and make it more efficient. Additionally, the new lambda expressions can help to reduce the amount of code needed to perform certain tasks, making development faster and easier.


Java 1.8 is a powerful and feature-rich platform that offers a variety of benefits when compared to its predecessor, Java 1.7. However, developers must keep in mind that due to its increased size and complexity, it can create compatibility issues with existing code bases and bring with it an increase in security concerns.

For those who wish to upgrade their applications to take advantage of Java 1.8’s features, it is important to ensure that you have followed best practices when migrating your codebase and tested it thoroughly before deployment into production.

Anand Das

Anand Das

Anand is Co-founder and CTO of Bito. He leads technical strategy and engineering, and is our biggest user! Formerly, Anand was CTO of Eyeota, a data company acquired by Dun & Bradstreet. He is co-founder of PubMatic, where he led the building of an ad exchange system that handles over 1 Trillion bids per day.

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