代码:
import java.util.*;
public class Main {
public static void main(String[] args) {
Map map = new LinkedHashMap<>();
map.put("a", 1);
map.put("b", 5);
map.put("c", 9);
map.put("d", 7);
map.put("e", 3);
map.put("f", 2);
map.put("g", 6);
map.put("h", 4);
ArrayList> arrayList = new ArrayList>(map.entrySet());
Collections.sort(arrayList, new Comparator>() {
public int compare(Map.Entry map1,
Map.Entry map2) {
return (map2.getValue() - map1.getValue());
}
});
for (Map.Entry entry : arrayList) {
System.out.println(entry.getKey() + " " + entry.getValue());
}
}
}
结果
c 9
d 7
g 6
b 5
h 4
e 3
f 2
a 1
代码参考