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

It depends on what you want to use it for. The typical reason to do so is to iterate over maps, for which you simply do this (Java 5+):

Map map = ... ; // just an example
for (Map.Entry entry : map.entrySet()) {
  System.out.printf("%s -> %s\n", entry.getKey(), entry.getValue());
}