Cheri提供了用JRuby创建Swing Builder应用的框架，采用特定域语言(DSL)，使得只需要非常简单的代码就创建优秀的Swing应用。



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Cheri主页：http://cheri.rubyforge.org/

下面是简单的例子：

Cheri::Swing hello world

require 'rubygems'
require 'cheri/swing'
include Cheri::Swing

f = swing.frame('Hello World') { label 'Hello!' }
f.pack
f.visible = true

Cheri::Swing and Cheri::Html

require 'cheri/swing'
require 'cheri/html'
include Cheri::Swing
include Cheri::Html

folks = {
  "Susan" =>"Wife", "Larry" =>"Son",
  "Bob" => "Friend","MaryAnne" => "Friend",
}
@frame = swing.frame('Swing and Html') { |frm|
  size 240,180; box_layout frm,:Y_AXIS
  content_pane { background :WHITE }
  default_close_operation :EXIT_ON_CLOSE
  menu_bar { 
    menu('File') {  mnemonic :VK_F
      menu_item('Exit') { mnemonic :VK_X
        on_click { @frame.dispose }
  }}}
  scroll_pane {
    align :LEFT
    editor_pane {
      content_type 'text/html'
      editable false
      background color(255,255,240)
      html {head {
         style "body { font-family: sans-serif; }" }
        body {div(:align=>:center) {
        table(:width=>'90%',:border=>1) {
          tr th('Name'), th('Relationship'),
            :bgcolor=>:yellow
          folks.each do |name,rel|
            tr(:bgcolor=>'#e0ffff') {
              td {name}; td {rel} }
          end      
   }}}}}}
}
@frame.visible = true