What i am doing wrong with Class Overview?
<p>This code not work. Anyone can helpme?</p>

<p>.java</p>

<pre><code>package rfmsoftware.util.test1;

import android.app.Activity;
import android.os.Bundle;

public class test1 extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        Button button = (Button)findViewById(R.id.Button01); &lt;---- Error at this line !?

    }
}
</code></pre>

<p>.xml</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    &gt;
&lt;TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/hello"
    /&gt;
&lt;EditText android:id="@+id/EditText01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:ems="10"&gt;&lt;/EditText&gt;
&lt;Button android:id="@+id/Button01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/Scan"&gt;&lt;/Button&gt;
&lt;View android:id="@+id/View01" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/View&gt;
&lt;/LinearLayout&gt;
</code></pre>

<p>.error</p>

<p>Button cannot be resolved to a type (type Java problem) ???</p>
