NullPointerException - onPause()
<p>This is goign to be very simple i expect to sort out and just me being a newbie going about in circles. </p>

<p>I have multiple tabs across my screen. The following code should read a text input and assign its value to Shared Preferences when another tab is selected. However, whenever i change to another tab my code fails with a NullPointerException - I believe i have tracked it down to the onPause() of the below code, and I believe it is because i am failing to pass the data within the variable correctly.</p>

<p>Any pointers appreciated!</p>

<pre><code>package com.androidbook.epcsn;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;

import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

@SuppressWarnings("unused")
public class jobActivity extends Activity {   

public static final String SN_PREFERENCES  = "SiteNotePrefs";

SharedPreferences mPrefSettings;
String jobID;
String jobAddress ;
String jobPostcode ;

public void onCreate(Bundle savedInstanceState) {        
    super.onCreate(savedInstanceState);          
    setContentView(R.layout.joblayout); 

    final SharedPreferences mPrefSettings = getSharedPreferences (SN_PREFERENCES, Context.MODE_WORLD_WRITEABLE);

    initjobID();
    initjobaddress();
    initjobpostcode();
}

private void initjobpostcode() {
    EditText jobPostcode = (EditText)findViewById(R.id.jobPostcodeText);
}

private void initjobaddress() {
    EditText jobAddress = (EditText)findViewById(R.id.jobAddressText);
}

private void initjobID() {
    EditText jobID = (EditText)findViewById(R.id.jobIDText);
}

@Override
protected void onPause(){
    super.onPause();

    String strjobID = jobID;
    String strjobAddress = jobAddress;
    String strjobPostcode = jobPostcode;

    Editor editor = mPrefSettings.edit();
    editor.putString("jobID", strjobID);
    editor.putString("jobAddress", strjobAddress);
    editor.putString("jobPostcode", strjobPostcode);
    editor.commit();
}
}
</code></pre>
