Fire an activity with a thread

package com.example.threads;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		Thread timer = new Thread(){
					
					public void run()
					{
						try
						{
							sleep(5000);
						}
						catch(InterruptedException e)
						{
							
						}
						finally
						{
							Intent openHelloLayout = new Intent(MainActivity.this,HelloActivity.class);
							startActivity(openHelloLayout);
						}
					}
				};
				timer.start();
	}
	
	@Override
	protected void onPause()
	{
		super.onPause();
		finish();
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}