Statistics enter the number of characters in any string

1 Importjava.util.ArrayList;2 ImportJava.util.HashSet;3 ImportJava.util.Iterator;4 Importjava.util.List;5 ImportJava.util.Set;6 7 /**8  * 9  * @authorTrfizengTen  */ One  Public classCountstr { A      -     //count occurrences of arbitrary strings -      Public StaticList<string>countstr (String str) { the         //A dictionary for storing the string to be detected -set<string> base =NewHashset<string>(); -         //each character used to hold the input string -List<string> Totalstr =NewArraylist<string>();  +         //the number of occurrences of each character to hold -List<string> coulist =NewArraylist<string>(); +         //Convert a string to a character array A         Char[] Tempchar =Str.tochararray (); at          -         //Initialize the dictionary and the characters to be counted -          for(inti = 0; i < tempchar.length; i++) { -Base.add (tempchar[i]+ ""); -Totalstr.add (tempchar[i]+ ""); -         } in          -Iterator<string> it =base.iterator (); to         //Initialize the number of occurrences of each character +          while(It.hasnext ()) { -String string =(String) It.next (); theCoulist.add (String + ":" + 0); *         } $         Panax Notoginseng         //used to count the occurrences of each character -         intc = 0; the         //Start Traversal +          for(inti = 0; I < totalstr.size (); i++) { AString TC =Totalstr.get (i); theiterator<string> ite =base.iterator (); +              while(Ite.hasnext ()) { -String obj =Ite.next (); $                     //determine if a character appears $                     if(tc.equals (obj)) { -                          for(intj = 0; J < Coulist.size (); J + +) { -String CL =Coulist.get (j); the                             if(Cl.startswith (obj)) { -                                 //take out the original number of occurrences +1Wuyic = Integer.parseint (Cl.substring (Cl.lastindexof (":") +1, Cl.length ())); theC++; -                                 //number of occurrences from the new setting WuCoulist.set (J, obj + ":" +(c)); -                             } About                         } $                     } -             } -         } -         returncoulist; A     } +      the      Public Static voidMain (string[] args) { -String teststr = "dfe:rrxc.:./haha yes:"; $List<string> cList =countstr (TESTSTR); the          for(inti = 0; I < clist.size (); i++) { theSystem.out.print (Clist.get (i) + ""); the         } the          /*  -             *  in Char []c=teststr.tochararray ();  the map<string,integer> m=new hashmap<string, integer> ();  the for (int i=0;i<c.length;i++) { About String cstr=string.valueof (C[i]);  the if (Null!=m.get (CStr)) { the int Count=m.get (CSTR);  the m.put (CStr, count+1);  + }else{ - M.put (cstr,1);  the                 }  Bayi             }   the              the             */ -     } -}

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Statistics enter the number of characters in any string