New to android, My simple name-getter app is crashing
<p>hey guys I'm just writing a name getter app as I'm learning android and I am forced to close the app when it loads in the emulator. I'm quite new so It's probably something simple.</p>

<p><strong>namegetter.java</strong> </p>

<pre><code>package edu.calpoly.android.lab1;
// tools
import android.app.Activity;
import android.content.Intent;
import android.content.pm.LabeledIntent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class NameGetter extends Activity implements android.view.View.OnClickListener{
    // variables
    private android.widget.EditText textEdit_Name;
    private android.widget.Button button_Submit;
    private String string_Name;
    private android.content.Intent intent_GetText;
    private android.os.Bundle bundle;
    private android.widget.TextView textView_Top;
    @Override
      public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.setContentView(R.layout.name_getter);

        // assign local variables
        textEdit_Name = (EditText) this.findViewById(R.id.editText_Name);
        button_Submit = (Button) this.findViewById(R.id.button_Submit);
        textView_Top = (TextView) this.findViewById(R.id.LABEL1);
        button_Submit.setOnClickListener(this);

       bundle = this.getIntent().getExtras();

       bundle.getString(string_Name);
       textView_Top.setText(string_Name);


    }

    public void onClick(View v) {
        string_Name = textEdit_Name.getText().toString();
        // create intent to pass
        intent_GetText= new Intent(this, HelloWorld.class);
        // pass to hello world activity
        intent_GetText.putExtra(string_Name, textEdit_Name.getText().toString());
        // initiate 
        this.startActivity(intent_GetText);
    }
}
</code></pre>

<p><strong>Manifest.xml</strong></p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="edu.calpoly.android.lab1"
      android:versionCode="1"
      android:versionName="1.0"&gt;
    &lt;uses-sdk android:minSdkVersion="12" /&gt;

    &lt;application android:icon="@drawable/icon" android:label="@string/app_name"&gt;
        &lt;activity android:name="NameGetter"
                  android:label="@string/app_name"&gt;
            &lt;intent-filter&gt;
                &lt;action android:name="android.intent.action.MAIN" /&gt;
                &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
            &lt;/intent-filter&gt;
        &lt;/activity&gt;
        &lt;activity android:name="HelloWorld" &gt;&lt;/activity&gt;

    &lt;/application&gt;
&lt;/manifest&gt;
</code></pre>
