Nullpointer exception when creating a database and have created two programs but the exception are occurring in different sections?


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I am trying to create a database applet for origami instructions. I had created the first applet which has two important parts: the list of instructions and the edit/add new instructions; it goes like this: Welcome page --> Main menu --> click on list of instructions button --> nullpointer exception. The edit/add button which leads to the edit/add menu works fine. After trying so many trys to get rid of the exception, I created a second applet. It goes like: First two parts are the same --> click on edit/add button --> nullpointer exception. The list of instructions works just fine in this applet for some reason. I have checked in both programs and I have everything from the main menu to


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JavaScript nullpointer exception: Why is contentWindow and contentDocument of my dynamically created iFrame always null?
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I created a one-page website using jQueryMobile.


"One-page" means the whole website consists of just one index.html file while different content is displayed via anchors, e.g.


index.html#start
index.html#contact
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I created an iFrame via JavaScript like this:


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In line 2 I get an exception which states:


Uncaught Ty

Nullpointer exception when creating a database and have created two programs but the exception are occurring in different sections?
Databases

I am trying to create a database applet for origami instructions. I had created the first applet which has two important parts: the list of instructions and the edit/add new instructions; it goes like this: Welcome page --> Main menu --> click on list of instructions button --> nullpointer exception. The edit/add button which leads to the edit/add menu works fine. After trying so many trys to get rid of the exception, I created a second applet. It goes like: First two parts are the same --> click on edit/add button --> nullpointer exception. The list of instructions works just fine in this applet for some reason. I have checked in both programs and I have everything from the main menu to

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package nick.android.com;
import java.util.ArrayList;
import android.app.ListActivity;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.view.View;
import android.widget.Array
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<?xml version="1.0" encoding="utf-8"?>
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android:orientation="vertical" >
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