String Sort

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我是靠谱客的博主文艺斑马，最近开发中收集的这篇文章主要介绍String Sort，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

字符串排序

①

package string_comparator;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
public class ListSortTest
{
public static void main(String[] args)
{
ArrayList<ArrayList<String>> aal = new ArrayList<ArrayList<String>>();
ArrayList<String> al = new ArrayList<String>();
al.add("zwf");
al.add("27");
aal.add(al);
al = new ArrayList<String>();
al.add("zwf");
al.add("26");
aal.add(al);
al = new ArrayList<String>();
al.add("zwb");
al.add("25");
aal.add(al);
al = new ArrayList<String>();
al.add("zwf");
al.add("21");
aal.add(al);
al = new ArrayList<String>();
al.add("zwb");
al.add("19");
aal.add(al);
al = new ArrayList<String>();
al.add("zwb");
al.add("77");
aal.add(2, al);
for (int i = 0; i < aal.size(); i++)
{
System.out.println(aal.get(i).get(0) + "
" + aal.get(i).get(1));
}
System.out.println("");
Collections.sort(aal, new Comparator<ArrayList<String>>()
{
public int compare(ArrayList<String> list_1, ArrayList<String> list_2)
{
String temp_1 = list_1.get(0) + list_1.get(1);
String temp_2 = list_2.get(0) + list_2.get(1);
int value = temp_1.compareTo(temp_2);
if (value > 0)
{
return 1;
}
else if (value < 0)
{
return -1;
}
else
{
return 0;
}
}
});
for (int i = 0; i < aal.size(); i++)
{
System.out.println(aal.get(i).get(0) + "
" + aal.get(i).get(1));
}
}
}

②

package string_comparator;
public class Obj implements Comparable<Obj>
{
private String name;
private String date;
public Obj(String name, String date)
{
this.name = name;
this.date = date;
}
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public String getDate()
{
return date;
}
public void setDate(String date)
{
this.date = date;
}
public int compareTo(Obj o)
{
String temp_1 = o.getName() + o.getDate();
String temp_2 = this.getName() + this.getDate();
int value = temp_2.compareTo(temp_1);
if (value > 0)
{
return 1;
}
else if (value < 0)
{
return -1;
}
else
{
return 0;
}
}
}

package string_comparator;
import java.util.ArrayList;
import java.util.Collections;
/**
*
*
* @author ZengWenFeng
* @date 2021.10.30
* @mobile 13805029595
*/
public class ObjSortTest
{
public static void main(String[] args)
{
ArrayList<Obj> al = new ArrayList<Obj>();
Obj o = new Obj("zwf", "2021.10.01");
al.add(o);
o = new Obj("zwf", "2021.10.11");
al.add(o);
o = new Obj("zwb", "2021.10.08");
al.add(o);
o = new Obj("zwf", "2021.07.08");
al.add(o);
for (int i = 0; i < al.size(); i++)
{
System.out.println(al.get(i).getName() + "
" + al.get(i).getDate());
}
System.out.println("-----");
Collections.sort(al);
for (int i = 0; i < al.size(); i++)
{
System.out.println(al.get(i).getName() + "
" + al.get(i).getDate());
}
}
/*
zwf
2021.10.01
zwf
2021.10.11
zwb
2021.10.08
zwf
2021.07.08
-----
zwb
2021.10.08
zwf
2021.07.08
zwf
2021.10.01
zwf
2021.10.11
*/
}