안드로이드 게시판 공지사항 연동할려했는데 안되네요 도와주세요 [closed]

Question

package io.github.hidroh.calendar;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteDatabase.CursorFactory;
import android.database.sqlite.SQLiteOpenHelper;

public class MyDbHelper extends SQLiteOpenHelper {

    private static final String DataBase_Name = "board.db";
    private static final int DataBase_Version = 1;

    public MyDbHelper(Context context, String name, CursorFactory factory, int version) {
        super(context, name, factory, version);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        db.execSQL("CREATE TABLE board(_id INTEGER PRIMARY KEY AUTOINCREMENT, "
                + "title TEXT, " + "date TEXT , " + "time TEXT, "
                + "memo TEXT );");
    }

    public void onSave(SQLiteDatabase db) {
        db.execSQL("insert into board(_id INTEGER PRIMARY KEY AUTOINCREMENT, "
                + "title TEXT, " + "date TEXT , " + "time TEXT, "
                + "memo TEXT );");
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        db.execSQL("DROP TABLE IF EXIST board;");
        onCreate(db);
    }

    public void onInsert(SQLiteDatabase db, int oldVersion, int newVersion) {
        db.execSQL("DROP TABLE IF EXIST board;");
        onCreate(db);
    }


    public void onModify(SQLiteDatabase db, int oldVersion, int newVersion) {
        db.execSQL("DROP TABLE IF EXIST board;");
        onCreate(db);
    }

    public void onDelete(SQLiteDatabase db, int oldVersion, int newVersion) {
        db.execSQL("DROP TABLE IF EXIST board;");
        onCreate(db);
    }
}