title: How add 30 days in current date?
body: <p>I want to add 30 days in my current date I searched a lot but did not get the proper solution.</p>
  
  <p>my code</p>
  
  <pre><code> Date date = new Date();
   SimpleDateFormat df = new SimpleDateFormat("YYYY-MM-dd");
   Calendar c1 = Calendar.getInstance();
   String currentdate = df.format(date);
  
   try {
       c1.setTime(df.parse(currentdate));
       c1.add(Calendar.DATE, 30);
       df = new SimpleDateFormat("yyyy-MM-dd");
       Date resultdate = new Date(c1.getTimeInMillis());
       String dueudate = df.format(resultdate);
       Toast.makeText(this, dueudate, Toast.LENGTH_SHORT).show();
   } catch (ParseException e) {
       e.printStackTrace();
   }
  </code></pre>
  
  <p>The output of this code is :
  2019-01-29
  I don't why it is showing this output can anyone help me.</p>