import java.util.Vector;
import javax.microedition.rms.RecordStore;
public class Add {
public void addRec(){
try{
RecordStore recordStore = RecordStore.openRecordStore("words", true );
recordStore.addRecord("a".getBytes(), 0, "Imdad".getBytes().length);
recordStore.addRecord("b".getBytes(), 0, "Asmat".getBytes().length);
recordStore.addRecord("c".getBytes(), 0, "Inam".getBytes().length);
recordStore.addRecord("d".getBytes(), 0, "Ikram".getBytes().length);
recordStore.addRecord("e".getBytes(), 0, "Shafqat".getBytes().length);
recordStore.closeRecordStore();
}catch(Exception e){}
}
public void insert(
String str){
try{
RecordStore rs=RecordStore.openRecordStore("words", true);
rs.addRecord(str.getBytes(), 0, str.getBytes().length);
System.out.println("Added user");
}catch(Exception e){}
}
public Vector getRec(){
Vector vt=new Vector();
try{
RecordStore recordst=RecordStore.openRecordStore("words", true);
int u=recordst.getNumRecords();
System.out.print(u);
for(int i=1; i<=recordst.getNumRecords(); i++){
byte br[]=recordst.getRecord(i);
String tr=new String(br);
vt.addElement(tr);
}
}catch(Exception e){}
return vt;
}
}
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insert method will be called when user press insert button on a form which has textfield. The value of that text field should store in recordStore. These values should not be deleted when application is closed.
Record Store didn't remain persistent in the J2ME emulator but when i installed the application in mobile, the record store remained persistent. The data remained their no matter how many times i close the application and open again. It created .rms file which stores the data. That file was not visible in mobile but when i see my folders in computer, it also shows the .rms file along with other files. 