e1304.java

java小程序

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class E1304 extends JFrame implements ItemListener
{
Container c;
JCheckBox checkBold=new JCheckBox("checkBold");
JCheckBox checkItalic=new JCheckBox("checkItalic");
JTextField tf=new JTextField("Serif Font 测试",24);
int bold=Font.PLAIN;
int italic=Font.PLAIN;
public E1304()
{
super("E1303.java:Serif Font 测试");
c=getContentPane();
c.setLayout(new FlowLayout(FlowLayout.CENTER));
c.add(tf);
c.add(checkBold);
c.add(checkItalic);
checkBold.addItemListener(this);
checkItalic.addItemListener(this);
setSize(300,200);
setVisible(true);
}

public void itemStateChanged(ItemEvent e)
{

if(e.getSource()==checkBold)
{
if(e.getStateChange()==ItemEvent.SELECTED)
bold=Font.BOLD;
else
bold=Font.PLAIN;
}
if(e.getSource()==checkItalic)
{
if(e.getStateChange()==ItemEvent.SELECTED)
italic=Font.ITALIC;
else
italic=Font.PLAIN;
}
tf.setFont(new Font("Serif",bold+italic,20));
tf.repaint();
}

public static void main(String args[])
{
E1304 app=new E1304();
app.addWindowListener(new MyWindowListener());
}

}