下面关于Applet的说法正确的是()。
A.Applet程序不需要编译
B.Applet能访问本地文件
C.Applet也需要main方法
D.自定义Applet可以继承自java.awt.Applet
A.Applet程序不需要编译
B.Applet能访问本地文件
C.Applet也需要main方法
D.自定义Applet可以继承自java.awt.Applet
A.Java语言取消了指针
B.Java语言不允许直接操作内存,而是采用自动垃圾回收的机制
C.通过访问限定符限制对象的存取权限
D.只允许applet访问网络,不允许application访问网络
A.Applet的主类要定义为java.applet.Applet类的子类
B.可以在安全策略的控制下读写本地磁盘文件
C.Java中不支持向Applet传递参数
D.Applet自身不能运行,必须嵌入到其他的应用程序(如浏览器)中运行
A.<appletcode=Test.classage=33width=1height=1>
B.<paramname=agevalue=33>
C.<appletcode=Test.classname=agevalue=33width=1height=1>
D.<appletTest33>
下面是用户程序对Applet类中方法paint()的重新定义,请在横线处填入正确的语句。 public void paint(Graphics g) {g.【 】(“你好!”,10,20);}
下面是用户程序对Applet类中方法paint()的重新定义。根据程序功能,在指定的空白处填上适当的语句或语法成分。 public void paint (Graphics g) {g. ______ (“你好!”,10,20);}
下面是用户程序对Applet类中方法action()的重新定义,功能为从单行文本编辑区input中输入数据赋给k。Text Field类的对象input和int型变量k已在类体中正确说明。 Public ______ action(Evente,Object o) {if(e.target==input) k=Integer.parseInt(______ .get Text()): repaint(); return true; }
A.根本无法解除
B.只有部分限制可以解除,而其它限制无法解除
C.可以在安全策略的控制下解除
D.已经缺省地全部解除
从下面提供的答案中选出应填入下列英文语句中______内的正确答案。
The most accurate and most boring way to(1)Java is that it is a new computer programming language developed by Sun Microsystems that creates(2)independent programs that can be distributed and run remotely. To run Java programs,a computer must have a Java interpreter. Currently(3)Java programs are small "applets" that are(3)as part of web pages.
When you use a Java(4)browser to view a Web page that includes a Java applet, the browser loads the applet onto your computer through your modem or network. Then the Java interpreter runs the applet, which could include animation or sound, on your computer rather than transmitting the code bit by bit over Internet. Afew thousand bytes of Java code can turn into a powerful program on your computer.
So an applet could include(5)with Java interpreter.