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  Tutorial: Start with working program

If there is a program which is similar to the desired program, many professional programmers will start with the existing program and make alterations.

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Find an existing program that's similar
Start with an existing program which is running. Use a previous program of your own, one taken from a textbook, or a program from these notes. There are several genericprograms in these notes that can be used.

Use part of an existing program
More common is that part of an existing program will be useful. For example, the section uses a GridBagLayout might be something to use as a model in your program. It's sometimes harder to use only part of an existing program because there are connections to other parts of the program that might be hard to untangle.


 

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