java列表( 二 ) _生活百科

中文排序中文排序是按照一定规则对中文进行排序。下面用java写出中文排序的表示方式。public static void main(String[] args) { ArrayList<String> list = new ArrayList<String>(); list.add("一鸣惊人-Y"); list.add("人山人海-R"); list.add("海阔天空-H"); list.add("空前绝后-K"); list.add("后来居上-H"); Comparator<Object> cmp = Collator.getInstance(java.util.Locale.CHINA); Collections.sort(list, cmp); for (String str : list) { System.out.println(str); }}实体类排序实体类排序是按照一定规则进行的排序。下面用java写出实体类排序的表示方式。package net.xsoftlab.baike;import java.util.ArrayList;import java.util.Collections;import java.util.Comparator;import java.util.List;public class TextList { public static void main(String[] args) { List<User> userlist = new ArrayList<User>(); userlist.add(new User("Y - 易小星 ", 33)); userlist.add(new User("W - 王大锤", 33)); Comparator<User> cmp = new ComparatorUser(); Collections.sort(userlist, cmp); for (User user : userlist) { System.out.println(user.getName()); } }}class ComparatorUser implements Comparator<User> { @Override public int compare(User u1, User u2) { // 先按年龄排序 int flag = u1.getAge().compareTo(u2.getAge()); // 年龄相等比较姓名 if (flag == 0) { return u1.getName().compareTo(u2.getName()); } else { return flag; } }}class User { private String name; private Integer age; public User() { super(); } public User(String name, Integer age) { super(); this.name = name; this.age = age; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Integer getAge() { return age; } public void setAge(Integer age) { this.age = age; }}