package demo;
import java.util.ArrayList;
import java.util.Collections; import java.util.Comparator; import java.util.HashMap; import java.util.List; import java.util.Map; import net.sourceforge.pinyin4j.PinyinHelper; public class ConvertTest { public static void main(String[] args) { String src = "我们中间出了一个叛徒"; char[] arr = src.toCharArray(); System.out.println("数组长度是："+arr.length); System.out.print("原始顺序："); for (char temp : arr) { System.out.print(temp+" "); } System.out.println(); convertToHanyuPinyin(arr); } private static List<String> convertToHanyuPinyin(char[] array){ HashMap<String, String> map = new HashMap<String, String>(); for (int i = 0; i < array.length; i++) { //得到拼音首字母 String value = (PinyinHelper.toHanyuPinyinStringArray(array[i]))[0].substring(0, 1); map.put(String.valueOf(array[i]), value); } System.out.println(map); List<String> list = sort(map); return list; } private static List<String> sort(Map map){ List<Map.Entry<String, String>> infoIds = new ArrayList<Map.Entry<String, String>>(map.entrySet()); // 对HashMap中的 value 进行排序 Collections.sort(infoIds, new Comparator<Map.Entry<String, String>>() { @Override public int compare(Map.Entry<String, String> o1, Map.Entry<String, String> o2) { return (o1.getValue()).compareTo(o2.getValue()); } }); List<String> list = new ArrayList<String>(); /*****************FOR　TEST***********************/ List<String> letterList = new ArrayList<String>(); /*****************FOR　TEST***********************/ // 对HashMap中的 value 进行排序后 显示排序结果 for (int i = 0; i < infoIds.size(); i++) { Map.Entry<String,String> entry = infoIds.get(i); list.add(entry.getKey()); letterList.add(entry.getValue()); } /*****************FOR　TEST***********************/ System.out.print("自然顺序:"); for (String string : list) { System.out.print(string + " "); } System.out.println(); System.out.print("字母顺序:"); for (String string : letterList) { System.out.print(string +" "); } /*****************FOR　TEST***********************/ return list; } }