title: Simple creation of folder under SDCARD in Android Studio
body: <p>I've used the code to create a folder under SD card. But the folder never creates.I've added uses-permission
              android:name="android.permission.WRITE_EXTERNAL_STORAGE"  to manifest.</p>
  
  <pre><code> File folder = new File(Environment.getExternalStorageDirectory().toString()+"/Images");
         folder.mkdirs();
  
  
         if(folder.exists()){
             Toast.makeText(getApplicationContext(),"exists",Toast.LENGTH_LONG).show();
         }else{
  
             Toast.makeText(getApplicationContext()," not exists",Toast.LENGTH_LONG).show();
         }
  </code></pre>