Groovy is a JVM-based language, which means it can seamlessly interact with Java code. In fact, Groovy was designed to be a “better Java”, with features that make it easier to work with Java code and libraries. Here are some ways to interact with Java code in Groovy:
1. Using Java classes: Groovy can directly use Java classes and interfaces, without any additional setup or configuration. You can simply import the Java classes and use them in your Groovy code.
2. Type coercion: Groovy provides automatic type coercion between Java and Groovy types. This means that you can pass Java objects to Groovy methods, and vice versa, without having to explicitly convert them.
3. Java-like syntax: Groovy has a syntax that is very similar to Java, which makes it easy to read and write Java code in Groovy. For example, you can use curly braces to define blocks of code, and semicolons to separate statements.
4. Java libraries: Groovy can use any Java library, without any modifications. You can simply add the Java library to your classpath, and use it in your Groovy code.
5. Java annotations: Groovy supports Java annotations, which are a way to add metadata to Java classes and methods. You can use Java annotations in your Groovy code, and they will be processed by the JVM at runtime.
Overall, Groovy provides seamless integration with Java code and libraries, which makes it a great language for Java developerswho want to take advantage of the benefits of a dynamically typed language while still being able to use their existing Java code.