示例对象
public class User {
private Stringname;
private int age;
public StringgetName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
// 按照User对象中的年龄字段使用java.util.Collections和java.util.Comparator进行正序排序
Collections.sort(list, new Comparator<User>() {
public int compare(User arg0, User arg1) {
int age0 = arg0.getAge();
int age1 = arg1.getAge();
if (age1 > age0 ) {
return -1;
} else if (age1 == age0 ) {
return 0;
} else {
return 1;
}
}
});
