midlet1.java

来自「这是郭克华老师的J2ME视频的源代码」· Java 代码 · 共 44 行

package prj15_1;

import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
import javax.microedition.rms.RecordStore;

public class MIDlet1 extends MIDlet {

	protected void startApp() throws MIDletStateChangeException {
		try{
			//打开记录集
			RecordStore rs = RecordStore.openRecordStore("RS1", true);
			//得到记录集大小
			System.out.println("RS1占据大小:" + rs.getSize());
			//得到记录集名称
			System.out.println(rs.getName());
			rs.closeRecordStore();//关闭记录集
			
			RecordStore.deleteRecordStore("RS1");
			
			String[] names = RecordStore.listRecordStores();
			for(int i=0;i<names.length;i++){
				System.out.println(names[i]);
			}
		}catch(Exception ex){
			ex.printStackTrace();
		}
		

	}
	protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
		// TODO Auto-generated method stub

	}

	protected void pauseApp() {
		// TODO Auto-generated method stub

	}



}