1protected void createList(String name, String srcLanguage, String trgLanguage) {
2 DbAdapter mDbHelper = new DbAdapter();
3 mDbHelper.open();
4 boolean success = false;
5 try {
6 mDbHelper.createList(name, srcLanguage, trgLanguage);
7 success = true;
8 } catch (ListExistsException lee) {
9 //sad but true...
10 }
11 mDbHelper.close();
12 if (success) {
13 this.finish();
14 } else {
15 Resources res = this.getResources();
16 Toast.makeText(this, res.getString(R.string.list_exists), Toast.LENGTH_SHORT).show();
17 }
18 }

1public class DbAdapter {
2
3 public void open() {
4 // TODO Auto-generated method stub
5
6 }
7
8 public void createList(String name, String srcLanguage, String trgLanguage) throws ListExistsException {
9 // TODO Auto-generated method stub
10 throw new ListExistsException();
11 }
12
13 public void close() {
14 // TODO Auto-generated method stub
15
16 }
17
18}

1public class ListExistsException extends Exception {
2
3 /**
4 *
5 */
6 private static final long serialVersionUID = 1L;
7
8 @Override
9 public String getMessage() {
10 // TODO Auto-generated method stub
11 //return "List exists already";
12 return super.getMessage();
13 }
14
15}