public static String join(float[] self,String separator){
  StringBuilder buffer=new StringBuilder();
  boolean first=true;
  if (separator == null)   separator="";
  for (  float next : self) {
    if (first) {
      first=false;
    }
 else {
      buffer.append(separator);
    }
    buffer.append(next);
  }
  return buffer.toString();
}

public static String join ( float [ ] self , String separator ) { StringBuilder buffer = new StringBuilder ( ) ; boolean first = true ; if ( separator == null ) separator = "" ; for ( float next : self ) { if ( first ) { first = false ; } else { buffer . append ( separator ) ; } buffer . append ( next ) ; } return buffer . toString ( ) ; }
concatenates the string representation of each items in this array , with the given string as a separator between each item .
