Syntax Highlighterが使用可能かテストです！

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.NavUtils;
import android.support.v4.view.ViewPager;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

public class STActivity extends FragmentActivity {

 /**
  * The {@link android.support.v4.view.PagerAdapter} that will provide
  * fragments for each of the sections. We use a
  * {@link android.support.v4.app.FragmentPagerAdapter} derivative, which
  * will keep every loaded fragment in memory. If this becomes too memory
  * intensive, it may be best to switch to a
  * {@link android.support.v4.app.FragmentStatePagerAdapter}.
  */
 SectionsPagerAdapter mSectionsPagerAdapter;

 /**
  * The {@link ViewPager} that will host the section contents.
  */
 ViewPager mViewPager;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_st);

  // Create the adapter that will return a fragment for each of the three
  // primary sections of the app.
  mSectionsPagerAdapter = new SectionsPagerAdapter(
    getSupportFragmentManager());

  // Set up the ViewPager with the sections adapter.
  mViewPager = (ViewPager) findViewById(R.id.pager);
  mViewPager.setAdapter(mSectionsPagerAdapter);

 }

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

 /**
  * A {@link FragmentPagerAdapter} that returns a fragment corresponding to
  * one of the sections/tabs/pages.
  */
 public class SectionsPagerAdapter extends FragmentPagerAdapter {

  public SectionsPagerAdapter(FragmentManager fm) {
   super(fm);
  }

  @Override
  public Fragment getItem(int position) {
   // getItem is called to instantiate the fragment for the given page.
   // Return a DummySectionFragment (defined as a static inner class
   // below) with the page number as its lone argument.
   Fragment fragment = new DummySectionFragment();
   Bundle args = new Bundle();
   args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, position + 1);
   fragment.setArguments(args);
   return fragment;
  }

  @Override
  public int getCount() {
   // Show 3 total pages.
   return 3;
  }

  @Override
  public CharSequence getPageTitle(int position) {
   switch (position) {
   case 0:
    return getString(R.string.title_section1).toUpperCase();
   case 1:
    return getString(R.string.title_section2).toUpperCase();
   case 2:
    return getString(R.string.title_section3).toUpperCase();
   }
   return null;
  }
 }

 /**
  * A dummy fragment representing a section of the app, but that simply
  * displays dummy text.
  */
 public static class DummySectionFragment extends Fragment {
  /**
   * The fragment argument representing the section number for this
   * fragment.
   */
  public static final String ARG_SECTION_NUMBER = "section_number";

  public DummySectionFragment() {
  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
    Bundle savedInstanceState) {
   // Create a new TextView and set its text to the fragment's section
   // number argument value.
   TextView textView = new TextView(getActivity());
   textView.setGravity(Gravity.CENTER);
   textView.setText(Integer.toString(getArguments().getInt(
     ARG_SECTION_NUMBER)));
   return textView;
  }
 }

}

良いですね！
無事表示されました！