1.when you implement a method that is defined in a superclass ,you override the orignal method.2.what modifier should you use on a variable so that it can only be referenced inside its defining class.3.what layout manager do you use to place three co
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1.when you implement a method that is defined in a superclass ,you override the orignal method.2.what modifier should you use on a variable so that it can only be referenced inside its defining class.3.what layout manager do you use to place three co
1.when you implement a method that is defined in a superclass ,you override the orignal method.
2.what modifier should you use on a variable so that it can only be referenced inside its defining class.
3.what layout manager do you use to place three components in a frame so that all the compontents have the same size?
4.what is the default layout manager for the content pane of a JFrame?
5.what method do you use to set the text to the right of the icon in an instance jbt of JButton?
6.A frame can be placed inside a frame.
7.what is the default layout manager for a JPanel?
8.what method do you use to set the size of a frame on the screen?
1.when you implement a method that is defined in a superclass ,you override the orignal method.2.what modifier should you use on a variable so that it can only be referenced inside its defining class.3.what layout manager do you use to place three co
1.当你实现一个超类里定义的方法时,你重写原来的方法.
2.在一个变量上使用什么修饰语让他只能在它定义的类的内部被引用.
3.使用什么布局管理器在一个框架里放置三个组件让他们有相同的大小.
4.JFrame的内容面板的默认布局管理器是什么
5.在JButton的一个实例中使用什么方法设置文本到图片的右边
6.一个框架可以放在一个框架的内部
7.JPanel的默认布局管理器是什么
8.使用什么方法可以设置屏幕上框架的大小