public void onListItemClick(ListView parent, View v, int position, long id)
   {
    if (position == 0) {

        startActivity(new Intent(this, GetParameter.class));

        GlobalFunctions.startCommonDate(1, 2, 1);
        startActivity(new Intent(this, newone.class));

    } else if (position == 1) {
        GlobalFunctions.startCommonDate(2, 2, 1);
        startActivity(new Intent(this, newone.class));

    } else if (position == 2) {
        GlobalFunctions.startCommonDate(3, 2, 1);
        startActivity(new Intent(this, newone.class));

    } else if (position == 3) {
        start_Customdate();
    }

}`

startActivity(new Intent(From.this,To.class));

Intent intent=new Intent(source.this,destination.class);
startActivity(intent);

Intent myIntent = new Intent(FirstActivity.this, secondActivity.class);

ListView lv = getListView();
lv.setOnItemClickListener(adapterAndListener);

lv.setOnItemClickListener(new OnItemClickListener() {
   public void onItemClick(AdapterView<?> parent, View view,
   int position, long id) {

      Intent myIntent = new Intent(CurrentActivity.this, NextActivity.class);
      CurrentActivity.this.startActivity(myIntent);

   }
});