class
User {
String name;
String age;
public
User(String name,String age){
this
.name
=
name;
this
.age
=
age;
}
public
String getAge() {
return
age;
}
public
void
setAge(String age) {
this
.age
=
age;
}
public
String getName() {
return
name;
}
public
void
setName(String name) {
this
.name
=
name;
}
}
public class SortTest {
public
static
void
main(String[] args){
List userlist
=
new
ArrayList();
userlist.add(
new
User(
"
dd
"
,
"
4
"
));
userlist.add(
new
User(
"
aa
"
,
"
1
"
));
userlist.add(
new
User(
"
ee
"
,
"
5
"
));
userlist.add(
new
User(
"
bb
"
,
"
2
"
));
userlist.add(
new
User(
"
ff
"
,
"
5
"
));
userlist.add(
new
User(
"
cc
"
,
"
3
"
));
userlist.add(
new
User(
"
gg
"
,
"
6
"
));
Collections.sort(userlist,
new
Comparator
<
User
>
(){
public
int
compare(User arg0, User arg1) {
User user0
=
(User)arg0;
User user1
=
(User)arg1;
//
首先比较年龄,如果年龄相同,则比较名字
int
flag
=
user0.getAge().compareTo(user1.getAge());
if
(flag
==
0
){
return
user0.getName().compareTo(user1.getName());
}
else
{
return
flag;
}
}
});
for
(
int
i
=
0
;i
<
userlist.size();i
++
){
User user_temp
=
(User)userlist.get(i);
System.out.println(user_temp.getAge()
+
"
,
"
+
user_temp.getName());
}
}
}
//
首先比较年龄,如果年龄相同,则比较名字
结果:
1
, aa
2
, bb
3
, cc
4
, dd
5
, ee
5
, ff
6
, gg
posted on 2009-03-16 22:19
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java