java 去除重複字符串數組

	/**
	 *@function    去掉字符串數組中重複的字符串!比如 {"123","456","123","456"}  去掉後的結果就是 {"123","456"}
	 *@param       str  需要轉化的字符串數組
	 *@return      newStrArray
	 **/	
	
	public static String[] distinctStrArray(String[] str){
		String newStrArray[] = null;
		String temp = "";
		String allTemp = "";
		for(int i = 0;i<str.length;i++){
			String string = str[i];
			if(!temp.equals(string+",")){
				if(allTemp.equals("")){					
						   allTemp +=  string + ",";
				}else{
					if(!allTemp.contains(string+",")){
						   allTemp +=  string + ",";
					}
				}				
			}
			temp = string+",";
		}
		allTemp = allTemp.substring(0, allTemp.length()-1);
		newStrArray = allTemp.split(",");
		return newStrArray;
	}