JCheckBox Checking

Ruby JRuby
1

Hi all,

This one has me beaten. The code follows below.

I am creating a GUI, which contains a single checkbox (more soon) and a
Go button.

All I am trying to do at this stage is:

  1. Create a GUI with checkbox - DONE
  2. Put a tick in the box & click go - DONE
  3. After licking go, I want to test if the checkbox is selected and if
    it, output “Box was ticked” - this just does not happen

Can anyone perhaps spot the stupid mistake I am making?

include Java

module Js
import java.awt.GridLayout
include_package “javax.swing”
include_package “javax.swing.JFrame”
include_package “javax.swing.JButton”
include_package “javax.swing.JPanel”
include_package “javax.swing.JOptionPane”
include_package “javax.swing.JPane”
include_package “javax.swing.JScrollPane”
include_package “javax.swing.JCheckBox”
end

panel = Js::JPanel.new
panel.setLayout GridLayout.new 10, 2

eCheckBox = Js::JCheckBox.new
elbl = Js::JLabel.new(“Everything");

panel.add(eCheckBox);
panel.add(elbl);

goButton = Js::JButton.new(“Run”)
panel.add goButton

frame = Js::JFrame.new()
frame.add panel
frame.pack
frame.setTitle(“GUI Checkbox")
frame.setResizable false
frame.setLocationRelativeTo nil

goButton.addActionListener do |e|
if EVTCheckBox.isSelected()
puts “Box was ticked"
end
frame.dispose()
end

frame.setVisible true

2

It seems as if EVTCheckBox is not declared but eCheckBox is.

Regards
Roger

Am 15.01.2014 um 13:47 schrieb Stuart C. [email protected]:

3

Very sorry thats a typo, below is correct.

goButton.addActionListener do |x|
if eCheckBox.isSelected()
puts “Box was ticked"
end
frame.dispose()
end

4

Stuart C. wrote in post #1133247:

Very sorry thats a typo, below is correct.

goButton.addActionListener do |x|
if eCheckBox.isSelected()
puts “Box was ticked"
end
frame.dispose()
end

I should add - even with the fixed typo I still have no success.

5

I have figured it out - its a issue with outputting to console.

6

Hi

I program with Jruby and Swing for fun.

You can take a look here …

Making this changes and after testing your code it works fine…

Reggards

Manuel R. Caro

include Java

panel = javax.swing.JPanel.new
panel.setLayout java.awt.GridLayout.new 10, 2

eCheckBox = javax.swing.JCheckBox.new
elbl = javax.swing.JLabel.new(“Everything”);

panel.add(eCheckBox);
panel.add(elbl);

goButton = javax.swing.JButton.new(“Run”)
panel.add goButton

frame = javax.swing.JFrame.new
frame.add panel
frame.pack
frame.setTitle(“GUI Checkbox”)
frame.setResizable false
frame.setLocationRelativeTo nil

goButton.addActionListener do |e|
if eCheckBox.isSelected()
puts “Box was ticked”
else
puts “Box was not ticked”
end
frame.dispose()
end

frame.setVisible true

El 15/01/14 16:21, Stuart C. escribi??: