判断一窜字符串当中同一个单词出现的频率次数

public static void main(String[] args) {// TODO Auto-generated method stubString str = "zhc zh z zh zhccc zhc zhchuan z zh 3 zhchuan zhuhongchuan";String[] ss = str.split(" ");HashSet<String> hs = new HashSet<String>();for(int i=0; i<ss.length; i++){hs.add(ss[i]);}for(String hss: hs){int num = 0;for(int j=0; j<ss.length; j++){if(ss[j].equals(hss)){num++;}}System.out.println(hss+"出现的次数为："+num);}