001package basics.mutabledata; 002public class Main { 003 private Main() {} 004 static public void main (final String[] args) { 005 //stdlib.Trace.graphvizShowSteps (true); stdlib.Trace.run (); 006 final MutPair<Integer,String> mp1 = new MutPair<>(); 007 mp1.setFirst(42); 008 mp1.setSecond("dog"); 009 System.out.println(mp1); 010 } 011}