What is the equivalent of the C++ Pair in Java?

Question

Is there a good reason why there is no Pair in Java? What would be the equivalent of this C++ construct? I would rather avoid reimplementing my own.<

Answer 1

Despite being syntactically similar, Java and C++ have very different paradigms. Writing C++ like Java is bad C++, and writing Java like C++ is bad Java.

With a reflection based IDE like Eclipse, writing the necessarily functionality of a "pair" class is quick and simple. Create class, define two fields, use the various "Generate XX" menu options to fill out the class in a matter of seconds. Maybe you'd have to type a "compareTo" real quick if you wanted the Comparable interface.

With separate declaration / definition options in the language C++ code generators aren't so good, so hand writing little utility classes is more time consuming tedium. Because the pair is a template, you don't have to pay for functions you don't use, and the typedef facility allows assigning meaningful typenames to the code, so the objections about "no semantics" don't really hold up.