RMS的高級(jí)操作

1、歡迎閱讀實(shí)驗(yàn)十四 RMS的高級(jí)操作一、實(shí)驗(yàn)?zāi)康募叭蝿?wù)1、RMS的高級(jí)操作（記錄集遍歷，記錄監(jiān)聽(tīng)，記錄過(guò)濾，排序功能）二、實(shí)驗(yàn)環(huán)境1、J2ME Wireless Tookit2、任意一個(gè)java源代碼開(kāi)發(fā)工具，如Eclipse三、實(shí)驗(yàn)步驟1、仿照課本的電話簿案例制作一個(gè)簡(jiǎn)單的同學(xué)通信錄。Email，備注信息。同學(xué)信息包括：姓名，班級(jí)，出生年月，家庭住址，手機(jī)號(hào)碼,*源代碼*查看, Command.OK, 1); 添加，Comma nd.OK,1);修改, Command.OK,1);刪除,Comma nd.OK,1);退出,Command.EXIT,1); 查詢,Command.OK,1);姓名

2、，”,StringItem.PLAIN); 手機(jī)，”,Stringltem.PLAIN); 班級(jí)，”,Stri ngltem.PLAIN);電子郵件，”,Stringltem.PLAIN) 出生年月，”,Stringltem.PLAIN);住址，”,StringItem.PLAIN); 備注信息，”,Stri nglte m. PLAIN); 退出,Command.EXIT,1);package ch2;import javax.microediti on. midlet.*;import java.util.*;public class shiya n_14 exte nds MIDlet

3、impleme nts Comma ndListe ner, RecordComparator private String rmsRecord = new String 1000;private int recordLe ngth = 0;Stack stack = new Stack();/list 定義private List list = new List(cnnBook, List.IMPLICIT); private Display display = n ull;private Comma nd cmdck = new Comma nd(” private Comma nd cm

4、dadd = new Comma nd(” private Comma nd cmdupdate = new Comma nd(” private Comma nd cmddel = new Comma nd(” private Comma nd cmdexit = new Comma nd(” private Comma nd cmdserch = new Comma nd(” /form 定義private Form form = new Form(form);private StringItem Fname = new StringItem( private StringItem Fmo

5、bile = new StringItem( private Strin gItem Fbj = new Strin gItem( private Strin gItem Femail = new Strin gItem( private Strin gItem Fny = new Strin gItem( private Strin gItem Faddress = new Strin gItem( private Strin gItem Fbz = new Strin gItem( private Comma nd formExit = new Comma nd(”添加界面歡迎閱讀/添加界

6、面定義private Form frmadd = new Form(”private Comma nd Cfnish = new Comma nd(” private TextField Cn ame= new TextField(” private TextField Cmobile = new TextField( private TextField Cbj = new TextField( private TextField Cemail = new TextField( private TextField Cny = new TextField( private TextField C

7、address= new TextField( private TextField Cbz= new TextField( /modifyC nn定義private Form modifyCnn = new Form(form); private Comma nd Mfin ish = new Comma nd(” private TextField Mn ame =new TextField( private TextField Mmobile=new TextField( private TextField Mbj =new TextField( private TextField Mem

8、ail=new TextField( private TextField Mny = new TextField( private TextField Maddress=new TextField( private TextField Mbz=new TextField( / 查詢”)；完成, Comma nd.EXIT, 1);姓名:,”,12,TextField.ANY);手機(jī):,12,TextField.ANY);班級(jí):,12,TextField.ANY);電子郵件:,12,TextField.ANY);出生年月:,12,TextField.ANY);家庭住址:,”,1024,TextF

9、ield.ANY) 備注信息:,”,1024,TextField.ANY);完成, Command.EXIT, 1);姓名,12,TextField.ANY);手機(jī),12,TextField.ANY);班級(jí),12,TextField.ANY);電子郵件,12,TextField.ANY);出生年月:,12,TextField.ANY); 家庭住址,1024,TextField.ANY); 備注信息 ”,”,1024,TextField.ANY);TextBox tb = new TextBox(search,40,TextField.ANY);private Comma nd searchF

10、in = new Comma nd(”完成, Comma nd.EXIT, 1);private Comma nd searchQuit = new Comma nd(”退出, Comma nd.EXIT, 1);public shiyan_14()RecordStore rs = rms.ope n(dbase);RecordE nu merati on re = rms.e nu mRecord(rs);recordLe ngth = re. nu mRecords();for(i nt i=0;irecordLe ngth;i+)int id = rms .n extID(re);rms

11、Recordi = rms.read(rs, id);list.appe nd(rmsRecordi, n ull);rms.close(rs);public void startApp() /list添加組件list.setSelectComma nd(cmdck);list.setSelectComma nd(cmdexit);list.addComma nd(cmdadd);list.addComma nd(cmddel);list.addComma nd(cmdupdate);list.addComma nd(cmdserch);list.setComma ndListe ner(th

12、is);/form 添加組件form.appe nd(Fbz);歡迎閱讀form.appe nd(Faddress);form.appe nd(Fny);form.appe nd(Femail);form.appe nd(Fbj);form.appe nd(Fmobile);form.appe nd(Fn ame);form.addComma nd(formExit);form.setComma ndListe ner(this);/新建form添加組件frmadd.appe nd(C name);frmadd.appe nd(Cmobile);frmadd.appe nd(Cbj);frma

13、dd.appe nd(Cemail);frmadd.appe nd(C ny);frmadd.appe nd(Caddress);frmadd.appe nd(Cbz);frmadd.addComma nd(Cfnish);frmadd.setComma ndListe ner(this);/ 修改form添加組件modifyC nn. appe nd(Mn ame);modifyC nn .appe nd(Mmobile);modifyC nn. appe nd(Mbj);modifyC nn .appe nd(Memail);modifyC nn. appe nd(Mn y);modify

14、C nn. appe nd(Maddress);modifyC nn. appe nd(Mbz);modifyC nn. addComma nd(Mfi ni sh);modifyC nn .setComma ndListe ner(this);/searchtb.addComma nd(searchQuit);tb.addComma nd(searchFi n);tb.setComma ndListe ner(this);if(display=n ull) display = Display.getDisplay(this);display.setCurre nt(list);public

15、void pauseApp() public void destroyApp(boolea n uncon diti on al) tryRecordStore.deleteRecordStore(dbase);catch(Excepti on e)rms.writeRecord(rmsRecord);public void comma ndActi on( Comma nd cmd, Displayable displayable)歡迎閱讀if(cmd = cmdserch) display.setCurre nt(tb);if(cmd = searchQuit) display.setCu

16、rre nt(list);if(cmd = searchF in) String s = tb.getString(); boolea n flg = false; int i;for(i=0;i num2)return RecordComparator.FOLLOWS;else if(nu m1 nu m2)return RecordComparator.PRECEDES;return RecordComparator.EQUIVALENT;package ch2;importpublic class rms static String dbase = dbase ;public stati

17、c RecordStore ope n( Stri ng dbn ame) RecordStore rs =n ull ;try true );rs = RecordStore.ope nRecordStore (db name,歡迎閱讀 catch(Excepti on e) return n ull ;return rs;public static void close(RecordStore rs) try rs.closeRecordStore(); catch(Excepti on e) public static int write(RecordStore rs, String s

18、) int id = -1;try byte tmp = s.getBytes();id = rs.addRecord(tmp, 0, tmp.len gth); catch(Excepti on e) return id;public static Str ing read(RecordStore rs,int r) Stri ng s =n ull ;try byte b = rs.getRecord(r);s =new Strin g(b); catch(Excepti on e) return s;publicstaticintdel(Stri ng s, Stri ng t) inti;intl = s.len gth ;for(i = 0; i l; i+) if (si.equals(t)return i;return -1;public staticRecordE numerati on en umRecord(RecordStore rs) try retur nrs.en umerateRecords(n ull , n ull , false ); catch (Excepti on e) return n ull ;public static intn extlD(RecordE numerati on re) try 歡迎閱讀re