39-section-7

39-section-7 - Mehran Sahami Handout #39 CS 106A November...

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Unformatted text preview: Mehran Sahami Handout #39 CS 106A November 14, 2011 Section Handout #7: Using Interactors Based on a handout by Eric Roberts 1. Using Interactors The purpose of this problem is to give you some practice using the kind of interactors you need for the NameSurfer project in Assignment #6. The specific example is to build a framework for an interactive design tool that allows the user to arrange boxes with labels on the window. The starting configuration for the program presents an empty graphics canvas and a control bar containing a JLabel , a JTextField , and three JButton s. The window as a whole then looks like this: The most important operation in the program is to be able to add a new box to the screen, which you do by typing the name of the box in the JTextField and clicking the Add button. Doing so creates a new labeled box with that name in the center of the window. For example, if you entered the string Program in the JTextField and clicked Add , you would see the following result:...
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39-section-7 - Mehran Sahami Handout #39 CS 106A November...

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