string - Change order of words Java -

i cannot figure out how change order of given name.

for example: van-dame claud result: claud dame-van

i created method, seems not correct, suggestion or maybe better method?

  public string nameinvers(){ string name, name = null, name = null, namefinal;     int s1 = getname().indexof(' ');     int s2 = getname().indexof('-');     if(s1 != 0){        name1 = getname().substring(0, s1);     if(s2 != 0)     {     name2 = getname().substring(s1, s2);     name3 = getname().substring(s2);     }     namefinal = name3 + name2 + name1;     }     else         namefinal = getname();      return namefinal;   } 

edit: in main method have number of names. thing says: throw new stringindexoutofboundsexception(sublen) , won't show up.

here go:

public static string reversename (string name) {      name = name.trim();      stringbuilder reversednamebuilder = new stringbuilder();     stringbuilder subnamebuilder = new stringbuilder();      (int = 0; < name.length(); i++) {          char currentchar = name.charat(i);          if (currentchar != ' ' && currentchar != '-') {             subnamebuilder.append(currentchar);         } else {             reversednamebuilder.insert(0, currentchar + subnamebuilder.tostring());             subnamebuilder.setlength(0);         }      }      return reversednamebuilder.insert(0, subnamebuilder.tostring()).tostring();  } 

test:

public static void main(string[] args) {      printtest("van-dame claud");     printtest("victor hugo");     printtest("anna");     printtest("");  }  private static void printtest(string s) {      system.out.printf("reverse name %s: %s\n", s, reversename(s));  } 

output:

reverse name van-dame claud: claud dame-van reverse name victor hugo: hugo victor reverse name anna: anna reverse name :