How can Objective C be integrated with other programming languages or technologies?
Objective C can be integrated with other programming languages or technologies through various methods such as interoperability features, frameworks, and libraries. The most common integration is with Swift, as both languages are used for iOS and macOS development. Objective C and Swift code can coexist in the same project, allowing developers to gradually migrate from Objective C to Swift. Additionally, Objective C can also be integrated with C and C++ using header files and import statements. This enables developers to leverage existing C and C++ libraries in their Objective C projects. Furthermore, Objective C can communicate with other languages through interprocess communication mechanisms like sockets, pipes, and RPC.