1-laboratoriya mashg'uloti: Java dasturlash tili haqida tushuncha. Ishdan maqsad

Address Book
Settings
Hello world!
Add New
Edit Contact
Delete Contact
DisplayContact
Name
Phone
Email
Street
City/State/Zip
Save Contact
Are you sure, you want to delete it.
Yes
No

Asosiy activity fayllar kо‘rinishi quyidagicha
DBHelper.java
package com.example.addressbook;
import java.util.ArrayList;
import java.util.Hashmap;
import java.util.Hashtable;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.DatabaseUtils;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteDatabase;
public class DBHelper extends SQLiteOpenHelper {
public static final String DATABASE_NAME = "MyDBName.db";
public static final String CONTACTS_TABLE_NAME = "contacts";
public static final String CONTACTS_COLUMN_ID = "id";
public static final String CONTACTS_COLUMN_NAME = "name";
public static final String CONTACTS_COLUMN_EMAIL = "email";
public static final String CONTACTS_COLUMN_STREET = "street";
public static final String CONTACTS_COLUMN_CITY = "place";
public static final String CONTACTS_COLUMN_PHONE = "phone";
private Hashmap hp;