title: Android - How to Convert String to utf-8 in android
body: <p>I can't convert a String to UTF-8 in android. please help me!!</p>
  
  <pre><code>s1=URLEncoder.encode("臺北市")
  </code></pre>
  
  <p>result : <code>%EF%BF%BDO%EF%BF%BD_%EF%BF%BD%EF%BF%BD</code></p>
  
  <p>But "<code>臺北市</code>" should be encoded as "<code>%E8%87%BA%E5%8C%97%E5%B8%82</code>"</p>