安卓开发，创建SQLite数据库

1、创建一个Java Class 文件

2、编写代码

package com.example.myapplication;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import androidx.annotation.Nullable;
public class MyDataBase extends SQLiteOpenHelper {
    private static String name = "zhuce.db";
    private static  int version = 1;
    public MyDataBase(@Nullable Context context) {
        super(context, name, null, version);//context  对应上下文;  name  数据库名;  factory  一般为空;  version  版本号
    }
    @Override
    public void onCreate(SQLiteDatabase db) {// 创建表
        String USER = "create table user(账号 varchar(11),密码 varchar(20),备注 varchar(1))";  //Integer 整型
        db.execSQL(USER);
    }
    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
    }
}