Insert records in SQLite tables in ANDROID

public void entryfield(String namestr, String nickstr) {
    ContentValues cv = new ContentValues(); // Bundle for writting the database fields
    cv.put(KEY_NAME, namestr);// put the values passed to ContentValues
    cv.put(KEY_NICKNAME, nickstr);// put the values passed to ContentValues
    db.insert(DATABASE_TABLE, null, cv);// insert into databse with vlues as "content vales"
    }

//==Create an object of adapter class to call methods==   
      DBAdapter Entryadapter = new DBAdapter(SQliteExample.this);
      Entryadapter.open();
      Entryadapter.entryfield(Namestr,Nickstr); // Calling the function in DBAdapter Class
      Entryadapter.close();