Writing Notepad program, with the text data content filtering function, requirements: (1) design the menu bar, there are two menus in the menu bar: Edit and edit (2) the file menu has four menu items, new, open, save and close. The edit menu has three menu items: copy, paste, and cut. (3) set the rules for data filtering as follows: convert all lowercase English characters data into uppercase English characters. (4) programming the file new , open (to open the text file E:\1.txt ) and save (filtering the user s input text data and saving it to E:\1.txt ).

notepadguolv
............\T6$1.class
............\T6$2.class
............\T6$3.class
............\T6$4.class
............\T6.class

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