package com.rpsg.gdxQuery; import java.util.HashMap; public class MapQuery<T1,T2> extends HashMap<T1, T2>{ private static final long serialVersionUID = 1L; public MapQuery(T1 t1, T2 t2) { add(t1,t2); } public MapQuery(Class<T1> t1, Class<T2> t2) { } public MapQuery() { } public MapQuery<T1,T2> add(T1 t1,T2 t2){ put(t1,t2); return this; } }