Interop
Java interoperability is the ability of code in another language or runtime to access and work with Java code, types, libraries, and functionality.
Clojure: The Essential Reference
Java interoperability is Clojure's capability to call Java classes, methods, and libraries from Clojure code.
- How it is used
- Uses interop to access Java SDK capabilities and provide Clojure entry points to Java methods.
- How deep it goes
- Identifies core access forms and works through overload selection and inlining, but does not detail the Java SDK examples.
- Examples
- Compares ordinary and inlined wrappers around an overloaded Java addition method, including their selected overloads and numeric results.
- What you can do after
- Apply it via Java access forms, and evaluate when an inlined Clojure wrapper improves overload selection.
Read how Clojure: The Essential Reference explains interop →
Kotlin in Action, 2E
Java interoperability is the ability of Kotlin code to interact directly with Java code and libraries, including exchanging compatible string values without conversion.
- How it is used
- Connects Kotlin code to existing Java libraries, frameworks, APIs, and JVM development tools.
- How deep it goes
- Explains shared strings and collections, Java-callable extensions, SAM lambdas, constructors, and annotated nullability; defers collection type-system details.
- Examples
- Demonstrates Java collection implementations, a Java-callable lastChar extension, downloader constructors, and an OnClickListener lambda.
- What you can do after
- Apply it via Java APIs by sharing strings and collections, passing SAM lambdas, calling extensions, and interpreting Java nullability annotations.
Related concepts
- stringuses · A string is a programming-language value representing an ordered sequence of characters or character units as text.
- client libraryuses · A client library is reusable software that provides programmatic interfaces for an application to interact with a service, platform, or system.
- Kotlinused by · Kotlin is a statically typed general-purpose programming language that targets the JVM and other platforms and interoperates with Java.
- some->used by · some-> is a Clojure macro that threads a value through forms as the second argument of each successive call and stops with nil when an intermediate result is nil.
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