The paint () method is called automatically by the environment (usually a web browser) that contains the applet whenever the applet window needs to be redrawn. This happens when the component is first displayed, but it can happen again if the user minimizes the window that displays the compon...
它包含：/* <applet code='DrawPoly' width=200 height=110></applet> */importjava.awt.*;importj...
import java.awt.*; import java.applet.*; import java.lang.*; public class exl2_3 extends Applet{ private TextField tf; private Button btn; public void init(){ tf=new TextField(25); add(tf); btn=new Button("确定"); add(btn); resize(250,200); } public void paint(Craphics g){...
import java.awt.*; import java.applet.*; import java.1ang*; public class exl3_3 extends Applet{ private TextField tf; private Button btn; public void init(){ tf=new TextField(25); add(tf); btn=new Bunon("统计"); add(btn); resize(250,200); } pubhc void paint(Graphics g){ ...
3、Java RMI(Java Remote Method Invocation)用来开发分布式Java应用程序。一个Java对象的方法能被远程Java虚拟机调用。这样,远程方法激活可以发生在对等的两端,也可以发生在客户端和服务器之间,只要双方的应用程序都是用Java写的。 4、Java IDL(Java Interface Definition Language) 提供与CORBA(Common Object Request ...
对此,书中的解释是:But if you try to call comp.repaint()in this program, you’ll find that the panel is only repainted after the addBall method has returned. 2. Testing, repaint with paint 查了相关文档,发现paint和repaint的区别还是很大的。Paint方法一般在UI事件的callback中被调用,以进行组件...