To become a great Java developer, knowing the programming language is not enough. You must be excellent in br Java programming and coding to make a good application. br Here is a list of 7 useful tips for Java mobile app and web developers. These tips are equally useful for companies br looking to hire Java Developer, as it will give them a glimpse of what skills they should be seeking in a good Java br Programmer. br 1. Learn Java 8 br 2. Become a Pro at Java APIs and Libraries br 3. Explore Spring Framework (Spring Boot) br 4. Enhance Your Unit Testing Skills br 5. Focus on JVM Internals br 6. Improve Your Working Knowledge of Design Patterns br 7.