计算器
于 2022-10-18 发布
文件大小:9.19 kB
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代码说明：
// calc-ui-model/Calc.java -- Fred Swartz// Level : Intermediate.// Structure : Three files: main, GUI (subclass of JFrame), logic.// Components: JButton, JTextField (right justified).// Containers: JFrame, several JPanels.// Layouts : BorderLayout to put the other panels together.// Two GridLayout panels for the buttons.// Listeners : One ActionListener which is shared by all// numeric key buttons. Similarly share// an ActionListener for all operator buttons.//
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