从 Java 链接列表集合框架中删除用户定义的对象

Question

我想从Java LinkedList Collection框架中删除用户定义的对象。下面的代码不会删除对象。我错过了什么？

import java.util.LinkedList;
import java.util.List;
public class MyObjectKeySearch {
static class CMDTimeSlot{
String comm;
int orig;
int prio;
public  CMDTimeSlot(String comm,int orig,int prio){
this.comm = comm;
this.orig = orig;
this.prio = prio;
}
}
public static void main(String a[]){
List<CMDTimeSlot> cmdlist = new LinkedList<>();
CMDTimeSlot one = new CMDTimeSlot("010D",2,2);
CMDTimeSlot two = new CMDTimeSlot("0100",1,1);
CMDTimeSlot three = new CMDTimeSlot("010C",3,3);
cmdlist.add(one);
cmdlist.add(two);
cmdlist.add(three);
for(CMDTimeSlot obj: cmdlist){
System.out.println(obj.comm +" " + obj.orig +" "+obj.prio);
}
cmdlist.remove(new CMDTimeSlot("0100",1,1) );
for(CMDTimeSlot obj: cmdlist){
System.out.println(obj.comm +" " + obj.orig +" "+obj.prio);
}
}
}

输出：：

010D 2 2 0100 1 1 010C 3 3

010D 2 2

0100 1 1 010C 3 3

Answer 1

使用类CMDTimeSlot的成员变量覆盖equals和hashcode方法。