Java中如何截取字符串数组中一段数字按大小进行排序，再输出整个排序后的字符串？

Question

String[] meg ={"1#zhang#3207237”，"2#Wang#3207232“。。。}根据最后的数字大小排序后输出

Answer 1

帮助lz实现了一下，望采纳

 import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Map.Entry;


public class test {

    public static void main(String[] arg0){

        String[] Info = {"1#zhang#3207237","2#Wang#3207232"};
        Map<String, Integer> myMap = new LinkedHashMap(); 
        fillMap(myMap, Info);
        myMap = sortMap(myMap);  
        printMap(myMap);
    }

    public static void fillMap(Map<String, Integer> myMap, String[] Info){

        int i, j;
        for(i = 0; i < Info.length; i++){
            for(j = Info[i].length() - 1; j >= 0; j--){
                if(Info[i].charAt(j) == '#') break;
            }
            int numLen = Info[i].length() - j;
            String strNum = Info[i].substring(
                    Info[i].length() - numLen + 1, Info[i].length());
            Integer num = Integer.valueOf(strNum);
        //  System.out.println(num);
            myMap.put(Info[i], num);
        }
    }

    private static void printMap(Map map){  

        Iterator it = map.entrySet().iterator();  
        while(it.hasNext()){  
            Map.Entry entry = (Map.Entry) it.next();  
            System.out.println(entry.getKey());  
        }   
    }   

    public static Map sortMap(Map oldMap) {  
        ArrayList<Map.Entry<String, Integer>> list = 
                new ArrayList<Map.Entry<String, Integer>>(oldMap.entrySet());  
        Collections.sort(list, new Comparator<Map.Entry<String, Integer>>() {  


            public int compare(Entry<java.lang.String, Integer> arg0,  
                    Entry<java.lang.String, Integer> arg1) {  
                return arg0.getValue() - arg1.getValue();  
            }  
        });  
        Map newMap = new LinkedHashMap();  
        for (int i = 0; i < list.size(); i++) {  
            newMap.put(list.get(i).getKey(), list.get(i).getValue());  
        }  
        return newMap;  
    }  
}