Pro4 Replace space (Java)

Note: The Stringbuilder,append,length method in Java makes it easy to solve string problems

1 /*2 * Sword means offer replacement space3 * xsf4  * */5 6 /*A function to begin replacing a space, length of the original array, lengths not calculated in Java/0*/7  classblankfun{8      Publicstring Replacebank (String str) {9         if(str==NULL)//Input safety judgmentTen             return NULL; One         //to build a new string AStringBuffer newstr =NewStringBuffer (); -          for(intI=0;i<str.length (); i++){ -             if(Str.charat (i) = = "){ theNewstr.append (' 0 '); -Newstr.append (' 2 '); -Newstr.append ('% '); -             } +             Else - Newstr.append (Str.charat (i)); +         } A         return NewString (NEWSTR); at     } - } -  -  Public classReplaceblank { -      Public Static voidMain (string[] args) { -String str = "x s F"; inBlankfun Blankfun =NewBlankfun (); -          to System.out.println (Blankfun.replacebank (str)); +          -     } the}

Pro4 Replace space (Java)