Java中Map按Value排序
public static void valueUpSort() {
// 默认情况，TreeMap按key升序排序
Map<String, Integer> map = new TreeMap<String, Integer>();
("acb1", 5);
("bac1", 3);
("bca1", 20);
("cab1", 80);
("cba1", 1);
("abc1", 10);
("abc2", 12);
// 升序比较器
Comparator<<String, Integer>> valueComparator = new Comparator<<String,Integer>>() {
@Override
public int compare(Entry<String, Integer> o1,
Entry<String, Integer> o2) {
// TODO Auto-generated method stub
return ()-();
}
};
// map转换成list进行排序
List<<String, Integer>> list = new ArrayList<<String,Integer>>(());
// 排序
(list,valueComparator);
// 默认情况下，TreeMap对key进行升序排序
("------------map按照value升序排序--------------------");
for (<String, Integer> entry : list) {
(() + ":" + ());
}
}