public static void setUIFont(){
// 给所有组件设置默认字体.
Font font=new Font("Dialog",Font.PLAIN,12);
java.util.Enumeration keys = UIManager.getDefaults().keys();
while (keys.hasMoreElements()) {
Object key = keys.nextElement();
Object value = UIManager.get (key);
if (value instanceof javax.swing.plaf.FontUIResource)
UIManager.put (key, font);
}
}
封装成一个类，调用即可、
