java J2ME 的 RMS 测试一例，j2merms,TestDB.javai

java J2ME 的 RMS 测试一例，j2merms,TestDB.javai

TestDB.java

import javax.microedition.midlet.MIDlet;import javax.microedition.lcdui.*;import javax.microedition.rms.*;public class TestDB extends MIDlet {    public void startApp() {        testDatabase();    }    public void pauseApp() {    }    public void destroyApp(boolean unconditional) {    }    private void testDatabase() {        try {            RecordStore anRMS = RecordStore.openRecordStore("TestRMS" , true);            anRMS.addRecordListener(new TestListener());/*          String test = "A test";            byte[] c = test.getBytes();            anRMS.addRecord(c, 0, c.length);            RecordFilter rf = new TestFilter();            if (rf.matches(anRMS.getRecord(1)))                System.out.println("The first record starts with 'A'");            else                System.out.println("The first record does not start with 'A'");*/         String test = "This is a test";         byte[] b = test.getBytes();         anRMS.addRecord(b, 8, 6);         anRMS.addRecord(b, 5, 2);         RecordComparator rc = new TestComparator();         byte[] r1 = anRMS.getRecord(1);         byte[] r2 = anRMS.getRecord(2);         System.out.println("Comparator found --> " + rc.compare(r1,r2));/*       byte[] george = "George".getBytes();         byte[] bob = "Bob".getBytes();         byte[] andy = "Andy".getBytes();         byte[] harry = "Harry".getBytes();         byte[] adam = "Adam".getBytes();         byte[] amos = "Amos".getBytes();         byte[] fred = "Fred".getBytes();         anRMS.addRecord(george, 0, george.length);         anRMS.addRecord(bob, 0, bob.length);         anRMS.addRecord(andy, 0, andy.length);         anRMS.addRecord(harry, 0, harry.length);         anRMS.addRecord(adam, 0, adam.length);         anRMS.addRecord(amos, 0, amos.length);         anRMS.addRecord(fred, 0, fred.length);         RecordComparator rc = new TestComparator();         RecordFilter rf = new TestFilter();         RecordEnumeration rEnum = anRMS.enumerateRecords(rf,rc,false);         while (rEnum.hasNextElement()) {            byte[] nextRec = rEnum.nextRecord();            String nextName = new String(nextRec);            System.out.println(nextName);         }         rEnum.destroy();*/      } catch (Exception e) {      }    }}