encoding.java

在手机应用程序开发时

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import com.sun.midp.io.HttpUrl;
import javax.microedition.io.HttpConnection;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

/**
 * @author tpwhw
 */
public class Encoding extends MIDlet implements CommandListener {
    private Command cmd_Exit=new Command("退出", Command.EXIT, 1);
    private Command cmd_Conn=new Command("Get",Command.SCREEN,1);
    private Command cmd_Post=new Command("Post",Command.SCREEN,1);
    private boolean init=true;
    private Display disp=Display.getDisplay(this);
    private Form fm=new Form(null);
    public void startApp() {
        if (init){
            init=false;
            disp.setCurrent(fm);
            fm.setCommandListener(this);
            

            byte[] b={};
            String[] s={"ucs-2","utf-8","utf8","utf_8","gb2312","gbk","unicode"};
            for (int i = 0; i < s.length; i++) {
                try {
                   b="中国人民共和国".getBytes(s[i]);
                   String str= new String(b, s[i]);
                   fm.append(s[i]+":"+Integer.toString(b.length)+"  "+str);
                } catch (Exception e) {
                }
                try {
                   b="中国人民共和国".getBytes(s[i].toUpperCase());
                   String str= new String(b, s[i].toUpperCase());
                   fm.append(s[i].toUpperCase()+":"+Integer.toString(b.length)+"  "+str);
                } catch (Exception e) {
                }                
            }
            fm.addCommand(cmd_Conn);
            fm.addCommand(cmd_Exit);
            fm.addCommand(cmd_Post);
        }
    }

    public void pauseApp() {
    }

    public void destroyApp(boolean unconditional) {
    }

    public void commandAction(Command c, Displayable d) {
        if (c==cmd_Exit){
            notifyDestroyed();
        }else if(c==cmd_Conn){
        new HtppConn(this);
        }else if(c==cmd_Post){
            new TESTPost(this);
        }
    }
}