delete.java

采用面向对象方法和Java语言开发一个基于命令行交互方式的议程管理系统（agenda）.已注册到系统的用户（user）可添加（add）,删除（delete）,查询（query）系统中记录的会议（mee

package agenda;

import java.util.*;
import agenda.Agenda;
import agenda.ManageAgenda;
/*
  Delete 类执行议程的删除功能，每次只能删除一个议程。
 */
public class Delete {
	public static void doDelete(List list){  
		ManageAgenda manageagenda = new ManageAgenda();
		int lag = 0;
		int index=0;
		int Flag_1 = 0;
		int Flag_2 = 0;
		for(index = 0;index<manageagenda.AgendaList.size();index++){
    		if(((String)list.get(0)).equals((String)((Agenda)manageagenda.AgendaList.get(index)).userName)){
    			Flag_1 = 1; //用户信息存在
    			break;
    		}
    	}
		//判断delete命令参数中会议主题是否在某议程中
		for(index = 0;index<manageagenda.AgendaList.size();index++){
    		// 根据议程标签判断用户议程存在并删除
			if(((String)list.get(2)).equals(((Agenda)manageagenda.AgendaList.get(index)).title)){
				Flag_2 = 1;
				lag = index;
				break;
			}
		}
		
		Agenda agenda = new Agenda();
		if((Flag_1 == 1)&&(Flag_2 == 1)){
			agenda = (Agenda)manageagenda.AgendaList.remove(lag);
			System.out.println("删除的议程：\n"+agenda.toString());
			System.out.println("删除成功！");
		}else{
			System.out.println("没有此用户信息,删除失败！");
		}

	}

}