Description: 1 using three text boxes and a button design a ddition calculator in the text box, enter the two integers, click the " Sum" button, in the third text box displays both data and. (2) design a JFrame window, the window center to add a text area. Another added two menus (File and Help), each menu contains at least two menu items, when you select a menu item, the window center text area displays the appropriate information. 3 Use the two results in the File menu to add the " Edit" menu item to open an existing text file to be modified.
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shiyan6\.classpath
.......\.project
.......\1.txt
.......\bin\1.txt
.......\...\2.txt
.......\...\3.txt
.......\...\AddCompute$1.class
.......\...\AddCompute.class
.......\...\TestMenu.class
.......\...\TestMenu2.class
.......\nullnull
.......\src\1.txt
.......\...\2.txt
.......\...\3.txt
.......\...\4.txt
.......\...\AddCompute.java
.......\...\TestMenu.java
.......\...\TestMenu2.java
.......\bin
.......\src
shiyan6
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