Java To Python And Back, AI That Translates Programming Languages

The Commonwealth Bank of Australia spent around $750 million and 5 years of work to convert its platform from COBOL to Java. Migrating an existing codebase to a modern or more efficient language like Java or C requires expertise in both the source and target languages, and is often costly. Usually, a transcompiler is deployed that converts source code from a high-level programming language (such as C or Python) to another. Transcompilers are primarily used for interoperability, and to port codebases written in an obsolete or deprecated language (e.g. They typically rely on handcrafted rewrite rules, applied to the source code abstract syntax tree.