stringArrayList.add("History of science and technology");
stringArrayList.add("The Scientific Revolution");
stringArrayList.add("Aerospace industry");
stringArrayList.add("Airship");
stringArrayList.add("Rocket and missile system");
stringArrayList.add("Antiaircraft gun");
stringArrayList.add("What Is a Volcano?");
stringArrayList.add("What Are Redshift and Blueshift?");
stringArrayList.add("STELLAR EVOLUTION");
stringArrayList.add("Life Cycle of a Star");
stringArrayList.add("Nuclear Fusion");
stringArrayList.add("MOLECULAR CLOUD");
stringArrayList.add("Benefits of Molecular Hydrogen");
stringArrayList.add("Solar System Form?");
stringArrayList.add("Nebular Hypothesis Of Laplace");
stringArrayList.add("What is a Planet?");
stringArrayList.add("Planets in Our Solar System");
stringArrayList.add("The Inner and Outer Planets in Our Solar System");
stringArrayList.add("Internal Structure");
stringArrayList.add("What Is The Atmosphere?");
stringArrayList.add("Earth's Atmosphere: Composition, Climate & Weather");
stringArrayList.add("Nuclear fission");
stringArrayList.add("Types of Nuclear Reactors");
stringArrayList.add("India’s Three-Stage Nuclear Power Programme");
stringArrayList.add("6 Cell Organelles");
stringArrayList.add("Plant Cell vs. Animal Cell");
stringArrayList.add("Carbohydrate");
stringArrayList.add("Biological significance");
stringArrayList.add("Monosaccharide Definition");
stringArrayList.add("Polysaccharide");

















if (selected.equals("History of science and technology")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/1.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("The Scientific Revolution")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/2.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Aerospace industry")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/3.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Airship")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/4.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Rocket and missile system")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/5.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Antiaircraft gun")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/6.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("What Is a Volcano?")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/7.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("What Are Redshift and Blueshift?")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/8.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("STELLAR EVOLUTION")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/9.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Life Cycle of a Star")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/10.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Nuclear Fusion")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/11.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("MOLECULAR CLOUD")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/12.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Benefits of Molecular Hydrogen")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/13.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Solar System Form?")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/14.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Nebular Hypothesis Of Laplace")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/15.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("What is a Planet?")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/16.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Planets in Our Solar System")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/17.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("The Inner and Outer Planets in Our Solar System")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/18.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Internal Structure")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/19.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("What Is The Atmosphere?")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/20.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Earth's Atmosphere: Composition, Climate & Weather")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/21.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Nuclear fission")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/22.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Types of Nuclear Reactors")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/23.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("India’s Three-Stage Nuclear Power Programme")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/24.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("6 Cell Organelles")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/25.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Plant Cell vs. Animal Cell")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/26.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Carbohydrate")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/27.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Biological significance")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/28.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Monosaccharide Definition")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/29.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }

if (selected.equals("Polysaccharide")) { Intent i = new Intent(MainActivity.this, DetailActivity.class); i.putExtra("id", position); i.putExtra("url" , "file:///android_asset/upsc4/30.htm" ); i.putExtra( "value", adapter.getItem(position)); startActivity(i); }