#/10setSize(100,90)。setBackground(Color.blue)。}publicvoidpaint(Graphicsg){if(s.equals("circle"))g.drawOval(30,35,40,40)。elseif(s.equals("rect"))g.drawRect(50,70,40,50)。}}publicclassp3extendsApplet{Mycanvascanvas1,canvas2。publicvoidinit(){canvas1=newMycanvas("circle")。canvas2=newMycanvas("rect")。add(canvas1)。Panelp=newPanel()。p.setBackground(Color.red)。p.add(canvas2)。add(p)。}}importjava.awt.*。importjava.awt.event.*。publicclassp4extendsFrame{W2(){super("Window2")。setSize(350,200)。setVisible(true)。addWindowListener(newWin())。}publicstaticvoidmain(String[]args){newW2()。}}classWinextendsWindowAdapter{publicvoidwindowClosing(WindowEvente){System.exit(0)。}}importjava.applet.*。importjava.awt.*。importjava.awt.event.*。publicclass5extendspAppletimplementsActionListener{TextFieldtext。Buttonbutton。publicvoidinit(){text=newTextField(10)。button=newButton("確立")。add(text)。add(button)。text.setLocation(10,10)。button.setLocation(30,10)。button.addActionListener(this)。}publicvoidactionPerformed(ActionEvente){text.setText(button.getLabel())。}}importjava.awt.Graphics。publicclassp6extendsApplet{publicvoidpaint(Graphicsg){。)g.drawLine(30,20,55,70)。}}publicclassp7extendsApplet{publicvoidpaint(Graphicsg){inti,x1,y1,x2,y2 。for(i=1。i<=50。i++){x1=(int)(Math.random()*10)y1=(int)(Math.random()*200)x2=(int)(Math.random()*380)y2=(int)(Math.random()*200)g.drawLine(x1,y1,x2,y2)}}publicclassalextendsApplet{publicvoidpaint(Graphicsg){g.drawRoundRect(40,40,100,70,50,50) 。}}importjava.awt.*。opublicclassa2extendsApplet{publicvoidinit(){setLayout(newFlowLayout(FlowLayout.LEFT,70,50))TOC\o"1-5"\h\zadd(newButton(" 查找 1"))。add(newButton(" 刪除 2"))。add(newButton(" 增添 3"))。add(newButton(" 改正"))。}}publicclassa3extendsApplet{publicvoidpaint(Graphicsg){g.drawLine(40,30,60,80)}}publicclassa