Inserimento dati su db

Questo esempio rappresenta l'inserimento del valore "test" all'interno della tabella "tbl_example" tramite classi java su android.

....
DataDbHelper dh;
String someThing = "test";
try{
 dh = new DataDbHelper(Main.this);
 dh.insertExample(someThing);
 dh.closeDb();
}
catch(Exception e){
//something
}
....

public class DataDbHelper {
private SQLiteDatabase db;  
private SQLiteStatement insertStmt; 
private static final String TABLE_EXAMPLE = "tbl_example";
private static final String FIELD_CODE_ID = "id";
private static final String FIELD_EXAMPLE = "fld_example";
private static final String INSERT_SQL = "insert into "  
        + TABLE_EXAMPLE + " ("+FIELD_EXAMPLE+") values (?)"; 
 
 public DataDbHelper(Context context) {  
  this.context = context;  
  OpenHelper openHelper = new OpenHelper(this.context); 
  this.db = openHelper.getWritableDatabase(); 
 }

 public void insertExample(String someThing) {  
  try { 
   this.insertStmt = this.db.compileStatement(INSERT_SQL); 
   this.insertStmt.bindString(1, someThing);  
   this.insertStmt.executeInsert();
  }
  catch(Exception e){}
  finally {                  
   if (this.insertStmt !=null) this.insertStmt.close();    
  }
 }    

 private static class OpenHelper extends SQLiteOpenHelper {  
    OpenHelper(Context context) {  
       super(context, DATABASE_NAME, null, DATABASE_VERSION);  
    }  

    public void onCreate(SQLiteDatabase db) {  
       db.execSQL("CREATE TABLE " + TABLE_EXAMPLE+ 
         " ("+FIELD_CODE_ID+" INTEGER PRIMARY KEY, "+
         FIELD_EXAMPLE+" TEXT)");  
    }  

    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {  
     try{
     //something
     }catch(SQLException e){
      //something
     }
    }  
 }  
}