the structure of a program which implements a simple Graphical User Interface (GUI) consisting of the...
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the structure of a program which implements a simple Graphical User Interface (GUI) consisting of the following components: (1) a single button, whose label is initially "Hello" and which prints the message "World" on the console when pressed; (2) a single menu with a single item which when selected has the effect of changing the button label to "Goodbye"; (3) a single "drawing area" on which pressing a mouse button causes the background to become red, and releasing the mouse button causes the background to become blue. You may assume that buttons have a method setText(String) to change their label text, and that drawing panels have a method setBackground(Color) to change their color. Note: you are not being asked for a complete syntactically-correct Java program, nor for memorized details of any specific Java GUI components. Your answer should contain Java-like code fragments which describe each of the basic steps, including both initialization and control flow, which would have to appear in a program intended to operate as described above. You may choose the class organization of the program and make liberal assumptions Activa about the names of various methods in objects and what they do, as long as your assumptions to Se are clear. the structure of a program which implements a simple Graphical User Interface (GUI) consisting of the following components: (1) a single button, whose label is initially "Hello" and which prints the message "World" on the console when pressed; (2) a single menu with a single item which when selected has the effect of changing the button label to "Goodbye"; (3) a single "drawing area" on which pressing a mouse button causes the background to become red, and releasing the mouse button causes the background to become blue. You may assume that buttons have a method setText(String) to change their label text, and that drawing panels have a method setBackground(Color) to change their color. Note: you are not being asked for a complete syntactically-correct Java program, nor for memorized details of any specific Java GUI components. Your answer should contain Java-like code fragments which describe each of the basic steps, including both initialization and control flow, which would have to appear in a program intended to operate as described above. You may choose the class organization of the program and make liberal assumptions Activa about the names of various methods in objects and what they do, as long as your assumptions to Se are clear.
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