frameclass.java

用JAVA做的图书借阅信息系统

import java.awt.*;
public class FrameClass extends Frame
{
	Label message;
	FrameClass(String s)
	{
		super(s);
		setLayout(null);
		message=new Label("");
		message.setAlignment(Label.CENTER);
		add(message);
	}
	public void setMessage(String s,int t)
	{
		Color c1=message.getBackground();
		message.setBackground(Color.red);
		message.setText(s);
    	try
	    {
   			Thread.sleep(t);
    	}
	    catch(InterruptedException ee){}
    	message.setBackground(c1);
	    message.setText("");
	}
}