title: error going from on activity to another automatically
body: <p>I'm using following code, to go from <code>first</code> Activity to <code>ListViewCheckboxes</code> Activity,  automatically after 5 seconds, but it has following errors:  </p>
  
  <pre><code>public class first extends Activity {
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          // TODO Auto-generated method stub
          super.onCreate(savedInstanceState);
          setContentView(R.layout.firstlayout);
  
          final Handler handler = new Handler();
          handler.postDelayed(new Runnable() {
              public void run() {
                  // TODO: Your application init goes here.
                  Intent mInHome = new Intent(first.this, InvoiceASAPTabActivity.class);
                  first.this.startActivity(mInHome);
              first.this.finish();
              }
          }, 3000);
      }
  }
  </code></pre>
  
  <blockquote>
    <p>Error:(17, 33) error: Handler is abstract; cannot be instantiated
    Error:(21, 57) error: cannot find symbol class InvoiceASAPTabActivity
    Error:(18, 16) error: cannot find symbol method postDelayed(,int)</p>
  </blockquote>
  
  <p>I'd really appreciate if someone could help, thanks!</p>