android collection.sort()根据时间排序list
2015-06-04 14:13
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首先:定义bean
然后:定义比较器
最后:测试使用
一.userBean
[java]
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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]
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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 plaincopyprint?
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
然后:定义比较器
最后:测试使用
一.userBean
[java]
view plaincopyprint?
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;
}
}
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 plaincopyprint?
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;
}
}
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 plaincopyprint?
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());
}
}
}
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
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