title: How to add Chinese support to an existing java application?
body: <p>I got an application that coded with java.</p>
  
  <p>the application have a same window that i can add some text and hit the send button. 
  it is sending the test to a server and then print it there.</p>
  
  <p>when i'm writing an English letter i have no problem.</p>
  
  <p>when i'm writing Chinese letter , i can see it on the windows , but when hitting the send button the letter is changed to ??.</p>
  
  <p>and the string that i'm sending to the server is ??.</p>
  
  <p>any idea how i can add the Chinese support here ?</p>