001    package collections;
002    
003    import java.util.Set;
004    import java.util.TreeMap;
005    import java.util.Map.Entry;
006    
007    public class AsciiMap {
008            public static void main(String[] args) {
009                    TreeMap<Character, Integer> tree = new TreeMap<Character, Integer>();
010                    for (int i = 0; i < 256; i++){
011                            tree.put((char)i , i);
012                    }
013                    
014                    Set<Entry<Character, Integer>> vals = tree.entrySet();
015                    for (Entry ent: vals){
016                            System.out.println("" + ent.getKey() + " : " + ent.getValue());
017                    }
018            }
019    }