android collection.sort()根据时间排序list

首先：定义bean

然后：定义比较器

最后：测试使用

一.userBean

[java] view plain copy print ?

1. package com.butterfly.Class; 
2.  
3. public class user { 
4.     private String name; 
5.     private String sex; 
6.     private int age; 
7.     private String birthday; 
8.      
9.     public user(String name,String sex,int age,String birthday){ 
10.         this.name = name; 
11.         this.sex = sex; 
12.         this.age = age; 
13.         this.birthday = birthday; 
14.     } 
15.     public String getName() { 
16.         return name; 
17.     } 
18.     public void setName(String name) { 
19.         this.name = name; 
20.     } 
21.     public String getSex() { 
22.         return sex; 
23.     } 
24.     public void setSex(String sex) { 
25.         this.sex = sex; 
26.     } 
27.     public int getAge() { 
28.         return age; 
29.     } 
30.     public void setAge(int age) { 
31.         this.age = age; 
32.     } 
33.     public String getBirthday() { 
34.         return birthday; 
35.     } 
36.     public void setBirthday(String birthday) { 
37.         this.birthday = birthday; 
38.     } 
39.      
40.      
41. } 

package com.butterfly.Class;

public class user {
	private String name;
	private String sex;
	private int age;
	private String birthday;
	
	public user(String name,String sex,int age,String birthday){
		this.name = name;
		this.sex = sex;
		this.age = age;
		this.birthday = birthday;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getSex() {
		return sex;
	}
	public void setSex(String sex) {
		this.sex = sex;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public String getBirthday() {
		return birthday;
	}
	public void setBirthday(String birthday) {
		this.birthday = birthday;
	}
	
	
}

二.定义比较器

[java] view plain copy print ?

1. package com.butterfly.Class; 
2.  
3. import java.util.Comparator; 
4.  
5. public class sortClass implements Comparator{ 
6.     public int compare(Object arg0,Object arg1){ 
7.         user user0 = (user)arg0; 
8.         user user1 = (user)arg1; 
9.         int flag = user0.getBirthday().compareTo(user1.getBirthday()); 
10.         return flag; 
11.     } 
12. } 

package com.butterfly.Class;

import java.util.Comparator;

public class sortClass implements Comparator{
	public int compare(Object arg0,Object arg1){
		user user0 = (user)arg0;
		user user1 = (user)arg1;
		int flag = user0.getBirthday().compareTo(user1.getBirthday());
		return flag;
	}
}

三.测试使用

[java] view plain copy print ?

1. package com.butterfly.Class; 
2.  
3. import java.util.ArrayList; 
4. import java.util.Collections; 
5. import java.util.List; 
6.  
7. public class testClass { 
8.     public static void main(String[] args){ 
9.         List userList = new ArrayList(); 
10.         userList.add(new user("吴光雷","男",25,"19871028")); 
11.         userList.add(new user("吴桥","男",22,"19900923")); 
12.         userList.add(new user("陆晓敏","男",25,"19870728")); 
13.         userList.add(new user("王佳俊","男",23,"19890728")); 
14.         userList.add(new user("秦菁","女",23,"19891212")); 
15.          
16.         sortClass sort = new sortClass(); 
17.         Collections.sort(userList,sort); 
18.         for(int i=0;i<userList.size();i++){ 
19.             user temp = (user)userList.get(i); 
20.             System.out.println("姓名:"+temp.getName()+",生日:"+temp.getBirthday()); 
21.         } 
22.     } 
23. } 

package com.butterfly.Class;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class testClass {
	public static void main(String[] args){
		List userList = new ArrayList();
		userList.add(new user("吴光雷","男",25,"19871028"));
		userList.add(new user("吴桥","男",22,"19900923"));
		userList.add(new user("陆晓敏","男",25,"19870728"));
		userList.add(new user("王佳俊","男",23,"19890728"));
		userList.add(new user("秦菁","女",23,"19891212"));
		
		sortClass sort = new sortClass();
		Collections.sort(userList,sort);
		for(int i=0;i<userList.size();i++){
			user temp = (user)userList.get(i);
			System.out.println("姓名:"+temp.getName()+",生日:"+temp.getBirthday());
		}
	}
}

输出结果：

姓名:陆晓敏,生日:19870728
姓名:吴光雷,生日:19871028
姓名:王佳俊,生日:19890728
姓名:秦菁,生日:19891212
姓名:吴桥,生日:19900923