package iotcloud; class ThreeTuple { private A a; private B b; private C c; ThreeTuple(A a, B b, C c) { this.a = a; this.b = b; this.c = c; } A getFirst() { return a; } B getSecond() { return b; } C getThird() { return c; } public String toString() { return "<" + a + "," + b + "," + c + ">"; } }