一个记录存储管理系统的例子

            destroyApp(true);
            notifyDestroyed();
        }
        if(c==cmdOk){
            data=(textfield.getString()).getBytes();
            try{
            recordID=rs.addRecord(data,0,data.length);
            System.out.println("recordID "+recordID+" is added!Total num is "+rs.getNumRecords());
            }catch(RecordStoreException e){
            System.out.println("Program error!exit");
            }
        textfield.setString("");
        }
        if(c==cmdQuery){
            try{
            int lastID=rs.getNextRecordID();
            for(int i=1;i<lastID;i++){
            try{
            byte[] data1=rs.getRecord(i);
            if(data1==null){
            System.out.println("null");
            rs.deleteRecord(i);
            }else{
            System.out.println(new String(data1));
            }
            }catch(InvalidRecordIDException e){
            continue;}
            }
            }catch(RecordStoreException e){}
            rf=new RF((textfield.getString()).getBytes());
            try{
            RecordEnumeration enum=rs.enumerateRecords(rf,null,false);
            System.out.println("查询结果如下：");