In ấn trong các Text Component

Ví dụ sau cho phép chúng ta in ra máy in đoạn văn bản trong 1 JTextArea

import java.awt.BorderLayout; import java.text.MessageFormat; import javax.swing.JFrame; import javax.swing.JButton; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextArea; import java.awt.event.*; public class JDK6TextComponentDemo extends JFrame implements ActionListener { private JTextArea textArea; private JButton btnPrint; final MessageFormat header = new MessageFormat(“My Header”); final MessageFormat footer = new MessageFormat(“My Footer”); public JDK6TextComponentDemo(){ textArea = new JTextArea(); textArea.setText(“text”); JScrollPane jScrollPane = new JScrollPane(textArea); JPanel contentPane = new JPanel(); contentPane.setLayout(new BorderLayout()); contentPane.add(jScrollPane, BorderLayout.CENTER); contentPane.add(btnPrint=new JButton(“Print”),BorderLayout.SOUTH); btnPrint.addActionListener(this); this.setTitle(“Text-component Printing Demo”); this.setSize(400, 200); this.setDefaultCloseOperation(EXIT_ON_CLOSE); this.setContentPane(contentPane); } public void actionPerformed(ActionEvent ae){ Object o=ae.getSource(); if(o.equals(btnPrint)){ try{ textArea.print(header, footer, true, null, null, true); }catch(Exception ex){ ex.printStackTrace(); } } } public static void main(String[] args) throws Exception { new JDK6TextComponentDemo().setVisible(true); } }

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