Basically I want to create my own calculator for triangle solver, meaning I have three angles and three sides. The user selects three of any combination of sides or angles, clicks Solve and the rest will be solved using sine law and cosine law. I have the GUI done.
Problem is I don't know how to get user to select the 3 angles or sides without over-selecting more than 3. I want the the boxes or whatever to automatically uncheck the least recently checked box or button. So, if I checked angle A, B and side b, when I check side c, then angle A is unchecked.
What's the best way?
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