–comment, api, message, method, object, class,

–convention, polymorphism, token, identifier, parse,

–javadoc, cast, unit test, implementation, inheritance,

–JVM, getter, overrides, documentation, declaration,

–scope, parameter, argument, signature, field, variable,

–error, instance, block, call stack, syntax, semantics,

–delegate, design, model, compile time, run time, ...