How do I create some variable type alias in Java

Question

let say I have this code

Map list = new HashMap();
list.put(\"number1\", \"one\");
list.put(\"number2\", \"two\")         


        

Answer 1

There is no typedef equivalent in Java, and there is no common idiom for aliasing types. I suppose you could do something like

class StringMap extends HashMap {}

but this is not common and would not be obvious to a program maintainer.