antijpmainform.java

一个反日货查询程序

/*
 * AntiJPMainForm.java
 * 主窗口界面
 * Created on 2004年2月7日, 下午7:46
 */

import javax.microedition.lcdui.*;

/**
 *
 * @author  wenyy
 * @version
 */
public class AntiJPMainForm extends Form {
    public static Command exitCmd =new Command("退出",Command.EXIT,1);
    public static Command okCmd =new Command("查找",Command.SCREEN,1);
    public static Command listCmd =new Command("所有列表",Command.SCREEN,2);
    public static Command updateCmd =new Command("通过WEB更新",Command.SCREEN,3);
    public static Command aboutCmd =new Command("关于...",Command.SCREEN,9);
    private TextField tbSearch; //输入搜索的名称
    private StringItem []tbResult; //显示搜索结果
    public AntiJPMainForm() { // 构造器
        super("坚决不买日本货");
        tbSearch =new TextField("名称","",20,0);
        tbResult = new StringItem[3];
        tbResult[0] =new StringItem("结果1"," ");
        tbResult[1] =new StringItem("结果2"," ");
        tbResult[2] =new StringItem("结果3"," ");
        //在界面窗口中添加对象
        append("输入厂商名或英文缩写");
        append(tbSearch);
        append(tbResult[0]);
        append(tbResult[1]);
        append(tbResult[2]);
        append("作者主页：http://wyy.vchelp.net");
        //添加命令对象
        addCommand(exitCmd);
        addCommand(okCmd);
        addCommand(listCmd);
        addCommand(updateCmd);
        addCommand(aboutCmd);
    }
    //从产品清单中进行搜索
    public void search(ProductLoader loader) {
        String keyword = tbSearch.getString();
        for(int i=0;i<3;i++) //清除原有结果
            tbResult[i].setText(" ");
        int lastIdx=0;
        int found =0;
        for(int k=0;k<3;k++) { //查找三个结果
            for(;lastIdx<loader.size();lastIdx++) {
                String s = (String)loader.arrayLines.elementAt(lastIdx);
                if( s.indexOf(keyword) != -1){
                    //包含查找的关键字
                    lastIdx ++;
                    tbResult[k].setText(s);
                    found ++;
                    break;
                }
            }
        }
        if(found ==0)
            tbResult[0].setText("暂时没有找到");
    }
}