Instead of merely compiling raw machine language and executing it on one type of machine, Java bytecode plus the Java interpreter allows your code to run on different types of machine architectures.

LLVMCodeGenerator.java – Visitor that generates LLVM IR index.html, index.js – Dynamic browser-based WebAssembly runner Delphi_Interpreter/ – Folder containing the interpreter and related files For ...

Writing a compiler seems like a much harder problem than an interpreter. If that is so, why was the first compiler written six years before the first interpreter?