Table of contents
1.
Introduction
2.
Why Java Is Still Relevant in 2025
2.1.
Enterprise Adoption and LTS Support
2.2.
Cross-Platform Versatility and Ecosystem
2.3.
Continued Innovation and Community Backing
3.
Advantages of Java
3.1.
Platform Independence
3.2.
Object-Oriented Programming
3.3.
Robust & Secure
3.4.
Large Community & Resources
3.5.
Easy to Learn
3.6.
Multithreading
3.7.
Backward Compatibility
3.8.
Wide Range of Applications
4.
Disadvantages of Java
4.1.
Performance
4.2.
Memory Usage
4.3.
Lack of Low-Level Programming
4.4.
Verbose Syntax
4.5.
Slow Startup Time
4.6.
Limited Mobile Development
4.7.
Paid Commercial Licensing
4.8.
Security Vulnerabilities
5.
Real-World Applications Built with Java
5.1.
Java in Android Development
5.2.
Java in Web & Enterprise Solutions
6.
Frequently Asked Questions
6.1.
What are the advantages and disadvantages of methods in Java? 
6.2.
What is the main advantage of Java 8? 
6.3.
What is the main importance of Java?
7.
Conclusion
Last Updated: Jul 3, 2025
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Advantages and Disadvantages of Java

Author Ravi Khorwal
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Introduction

Java is a popular programming language used by developers worldwide. Java being a versatile language can be used for various applications, from web development to mobile app creation. It has many advantages that make it a preferred choice for programmers, but it also has some disadvantages that should be considered. 

Advantages and Disadvantages of Java

In this article, we will discuss the advantages & disadvantages of using Java & help you understand when it might be the right choice for you.

Why Java Is Still Relevant in 2025

Java remains a prominent presence in the modern software development landscape. Despite the rise of newer programming languages, Java in 2025 remains a top choice for enterprise applications, cross-platform development, and backend services. Its strong ecosystem, ongoing innovation, and massive developer base ensure its sustained demand and reliability. Here are three major reasons why Java is still highly relevant today.

Enterprise Adoption and LTS Support

Java’s dominance in enterprise software development remains unshaken. Thousands of large-scale systems, including those in banking, healthcare, and government, rely on Java for its robustness and security. One of the key reasons businesses continue to use Java in 2025 is the availability of Long-Term Support (LTS) versions such as Java 11, Java 17, and Java 21. These LTS versions offer guaranteed stability, regular updates, and backward compatibility, which are critical for long-term projects. Companies favor Java’s predictable release cycles and support lifecycle, making it a safe and future-proof investment for mission-critical applications.

Cross-Platform Versatility and Ecosystem

Java’s “write once, run anywhere” philosophy remains one of its greatest strengths. Java applications can run seamlessly across platforms thanks to the Java Virtual Machine (JVM). Whether it's cloud-native services, Internet of Things (IoT) devices, or Android mobile apps, Java offers exceptional portability. In 2025, Java is widely used in building cloud-based microservices with frameworks like Spring Boot, as well as in Android development and edge computing. Its mature ecosystem, including robust libraries, build tools (like Maven and Gradle), and frameworks, enables developers to build scalable and efficient applications across a wide range of domains.

Continued Innovation and Community Backing

Java’s evolution hasn’t slowed down. The language continues to improve with features like records, pattern matching, virtual threads (Project Loom), and better performance optimizations introduced in recent versions. This modernization keeps Java relevant in the face of competition. Additionally, Java boasts one of the largest global developer communities. The active contribution from Oracle, OpenJDK, and open-source enthusiasts ensures regular improvements, extensive documentation, and long-term viability. This strong community and vendor support make Java a reliable and modern choice for developers and organizations in 2025.

Advantages of Java

Platform Independence

Java is platform-independent, which means that Java programs can run on any device that has a Java Virtual Machine (JVM) installed. This is possible because Java code is compiled into bytecode, which is then interpreted by the JVM. This makes Java a great choice for developing cross-platform applications.

Object-Oriented Programming

Java is an object-oriented programming language, which means that it uses objects & classes to organize code. This makes code easier to understand, maintain, & reuse. OOP also helps in creating modular & scalable applications.

Robust & Secure

Java is designed to be a robust & secure language. It has features like automatic memory management, exception handling, & strong typing, which help prevent common programming errors. Java also has built-in security features that help protect against malicious code.

Large Community & Resources

Java has a large & active community of developers who contribute to its development & provide support. There are also numerous libraries, frameworks, & tools available for Java, which makes it easier to develop complex applications.

Easy to Learn

Java has a simple & intuitive syntax that is easy to learn, especially for beginners. It also has extensive documentation & resources available online, which makes it easier to get started with the language.

Multithreading

Java supports multithreading, which allows multiple threads to execute simultaneously within a single program. This can help improve the performance of applications that require parallel processing.

Backward Compatibility

Java is designed to be backward compatible, which means that code written in older versions of Java can still run on newer versions. This makes it easier to maintain & upgrade applications over time.

Wide Range of Applications

Java is used in a wide range of applications, from web & mobile apps to enterprise software & embedded systems. This versatility makes it a popular choice for developers across different industries.

Disadvantages of Java

Performance

Java is known to be slower than other programming languages like C++ because it uses a virtual machine to execute code. This overhead can impact the performance of Java applications, especially those that require high performance.

Memory Usage

Java applications tend to use more memory than other programming languages because of the overhead of the JVM. This can be a problem for applications that need to run on devices with limited memory, such as mobile devices or embedded systems.

Lack of Low-Level Programming

Java does not provide direct access to low-level programming features like pointers, which can make it difficult to write certain types of applications that require low-level control.

Verbose Syntax

Java has a verbose syntax compared to other programming languages, which can make code harder to read & write. This can be especially problematic for beginners who are learning the language.

Slow Startup Time

Java applications can take longer to start up than applications written in other programming languages because of the overhead of the JVM. This can be a problem for applications that need to start up quickly.

Limited Mobile Development

While Java is used for Android app development, it is not the primary language for iOS app development. This can limit the ability of Java developers to create mobile apps for both platforms.

Paid Commercial Licensing

While Java is open-source, some of its enterprise features require paid commercial licensing. This can be a disadvantage for organizations that need to use these features but have limited budgets.

Security Vulnerabilities

Despite its security features, Java has had several high-profile security vulnerabilities over the years. These vulnerabilities have been exploited by hackers to attack systems running Java applications.

Real-World Applications Built with Java

Java is not just a learning language—it powers many of the technologies and platforms we interact with daily. From mobile apps to enterprise-grade systems, Java remains at the core of countless real-world applications due to its stability, scalability, and cross-platform capabilities. Below are two major domains where Java continues to make a strong impact.

Java in Android Development

Java is one of the foundational languages for Android app development, with widespread support from tools like Android Studio and official Android SDKs. While Kotlin has gained popularity, Java still powers millions of Android apps worldwide due to its maturity, rich library support, and vast developer community. Apps like Twitter (early versions), Spotify, and Signal were originally built using Java. Its compatibility with the Android operating system allows developers to create efficient and responsive mobile applications. Java for Android development remains a practical skill in 2025, especially for maintaining and upgrading legacy codebases or building cross-compatible apps.

Java in Web & Enterprise Solutions

Java plays a crucial role in building robust and scalable enterprise-level web applications. Using powerful Java frameworks like Spring Boot, Hibernate, JSP, and Servlets, developers create back-end services that drive e-commerce platforms, banking software, ERP systems, and government portals. Major industries—finance, healthcare, logistics—rely on Java web solutions for secure transactions and complex business logic. For instance, banking applications like ICICI’s backend systems and IRCTC’s ticketing portal in India have long used Java technologies. With its strong support for multithreading, database connectivity, and modular architecture, Java in enterprise remains essential for building mission-critical systems.

Frequently Asked Questions

What are the advantages and disadvantages of methods in Java? 

Advantages: Methods in Java promote code reuse, modularity, and easier maintenance. They allow breaking complex tasks into smaller, manageable pieces, improving readability and testing.

Disadvantages: Methods in Java can increase memory overhead with recursive calls and may lead to over-segmentation of logic.

What is the main advantage of Java 8? 

The main advantage of Java 8 is the introduction of Lambda Expressions and the Stream API that allows for more concise, functional-style programming. This update improves code readability and reduces boilerplate code.

What is the main importance of Java?

Main  importance of Java lies in its platform independence which is achieved through the Java Virtual Machine (JVM). This "write once, run anywhere" capability makes it a popular choice for developing cross-platform applications, from enterprise solutions to Android apps.

Conclusion

In this article, we discussed the advantages & disadvantages of using Java as a programming language. Java's platform independence, object-oriented programming, robustness, security features, & large community make it a popular choice for many developers. However, its performance, memory usage, & lack of low-level programming features can be disadvantages in certain situations. Despite these drawbacks, we cant deny the fact that Java still and will remains a widely-used & relevant language, particularly for Android app development.

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