感谢阅读我的询问.我知道之前已经问过这个问题,但我没有找到我在其他回复中寻找的答案.我希望我会问正确的问题.
此代码适用于我的DataBase Handler.它包含与其相关的所有方法,例如创建表,添加和删除条目以及在我的应用程序中打印数据库.
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
public class EmailDBHandler extends SQLiteOpenHelper{
private static final int DATABASE_VERSION = 1;
private static final String DATABASE_NAME = "loginEntries.db";
public static final String TABLE_LOGINENTRIES = "loginEntries";
public static final String COLUMN_ID = "_id";
public static final String COLUMN_NICKNAME = "nickname";
public static final String COLUMN_EMAILADDRESS = "emailAddress";
public static final String COLUMN_PASSWORD = "password";
public static final String COLUMN_LASTNAME = "lastName";
public static final String COLUMN_FIRSTNAME = …