アプリの各種名前を取得します。

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
 
public class MainActivity extends Activity
{
	@Override
	protected void onCreate( Bundle savedInstanceState )
	{
		super.onCreate( savedInstanceState );
		setContentView( R.layout.activity_main );
 
		StringBuilder stringBuilder = new StringBuilder();
 
		stringBuilder.append( "PackageName=" + getPackageName() );
		stringBuilder.append( "\n\n" );
 
		stringBuilder.append( "PackageCodePath=" + getPackageCodePath() );
		stringBuilder.append( "\n\n" );
 
		stringBuilder.append( "PackageResourcePath=" + getPackageResourcePath() );
		stringBuilder.append( "\n\n" );
 
		// 表示。
		TextView textView = (TextView) findViewById(R.id.textView);
		textView.setText( stringBuilder.toString() );
	}
}