[JAVA100 example]018, using HTML language

Last Update:2017-02-27 Source: Internet

Author: User

Tags event listener

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Import javax.swing.*; import java.awt.*; import java.awt.event.*; /** * title: Using HTML language in swing * description: This demonstrates the use of HTML language to construct display information on swing panels * copyright:copyright (c) 2003 * Filename:HtmlDemo.java * @version 1.0 */ public class Htmldemo extends JPanel implements ActionListener { JLabel Thelabel; JTextArea HtmlTextArea; /** * Method Description: Constructor, which describes the members of a form * input Parameters: * return type: */ public Htmldemo () { setlayout (The new BoxLayout (this, boxlayout.line_axis)); String initialtext = "<html>\n" + "Color and font test: \ n" + "<ul>\n" + "<li>red\n" + "<li>blue\n" + "<li>green\n" + "<li>small\n" + "<li>large\n" + "<li>italic\n" + "<li>bold\n" + "</ul>\n"; //Define a text box HtmlTextArea = new JTextArea (10, 20); Htmltextarea.settext (Initialtext); JScrollPane ScrollPane = new JScrollPane (HtmlTextArea); //Definition button JButton Changethelabel = new JButton ("Change display"); changethelabel.setmnemonic (Keyevent.vk_c); Changethelabel.setalignmentx (component.center_alignment); Changethelabel.addactionlistener (this); //Definition label Thelabel = new JLabel (initialtext) { public Dimension getpreferredsize () { return new Dimension (200, 200); 　　　　　　} public Dimension getminimumsize () { return new Dimension (200, 200); 　　　　　　} public Dimension getmaximumsize () { return new Dimension (200, 200); 　　　　　　} 　　　　}; //sets the alignment of the label thelabel.setverticalalignment (Swingconstants.center); thelabel.sethorizontalalignment (Swingconstants.center); //Constructs a border-left edit panel JPanel Leftpanel = new JPanel (); Leftpanel.setlayout (New BoxLayout (Leftpanel, Boxlayout.page_axis)); Leftpanel.setborder (Borderfactory.createcompoundborder ( Borderfactory.createtitledborder ( edit HTML, click the button to display the results. "), Borderfactory.createemptyborder (10,10,10,10))); Leftpanel.add (ScrollPane); Leftpanel.add (Box.createrigidarea (New Dimension (0,10))); Leftpanel.add (Changethelabel); //Construct a panel with a border to the right display JPanel Rightpanel = new JPanel (); rightpanel.setlayout (New BoxLayout (Rightpanel, Boxlayout.page_axis)); Rightpanel.setborder (Borderfactory.createcompoundborder ( Borderfactory.createtitledborder ("Show HTML results here using tags"), Borderfactory.createemptyborder (10,10,10,10))); Rightpanel.add (Thelabel); SetBorder (Borderfactory.createemptyborder (10,10,10,10)); Add (Leftpanel); Add (Box.createrigidarea (new Dimension (10,0))); Add (Rightpanel); 　　} /** * Method Description: Event listener, when the user clicks on the button to trigger the * input Parameters: * return type: */ public void actionperformed (ActionEvent e) { Thelabel.settext (Htmltextarea.gettext ()); 　　} /** * Method Description: Main method * input Parameters: * return type: */ public static void Main (string[] args) { jframe.setdefaultlookandfeeldecorated (TRUE); //Create form JFrame frame = new JFrame ("Htmldemo"); frame.setdefaultcloseoperation (jframe.exit_on_close); //Create panel JComponent Newcontentpane = new Htmldemo (); Newcontentpane.setopaque (TRUE); Frame.setcontentpane (Newcontentpane); //Display form Frame.pack (); frame.setvisible (TRUE); 　　} }

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