How to update a record in SQLite with Android?

How to update a record in SQLite with Android?

Hello.

I write because I am unfortunately stuck in my project and I hope you can help me. How do I update a record in a database?

For example in a contact database. In this database of contacts, the following keys are used: name, phone, email and address; my problem is when I need to modify a record, what must I do to modify a record.

I hope you can help me. Thanks in advance.

This is the SQLite code to update the registry:

// Updating single contact

public int updateContact(Contact contact) {

SQLiteDatabase db = this.getWritableDatabase();

ContentValues values = new ContentValues();
values.put(KEY_NAME, contact.getName());
values.put(KEY_PH_NO, contact.getPhoneNumber());

// updating row
return db.update(TABLE_CONTACTS, values, KEY_ID + " = ?", new String[] { String.valueOf(contact.getID()) });

}

This same code I have found on many websites, but my problem is how to call the code from the MainActivity with Java.