in a class of 26 students 14 are boys and 12 are girls if 2/3 of girls and half of the boys play basketball draw venn diagram to show how many children do not play basketball

Answer 1

Okay I'm going to assume you need to draw a Venn diagram using Java. I'm not sure which part you're asking about to be honest. I'm assuming it's the math that's tripping you up?

Let's decide what we're going to use to draw the diagram first because that will dictate how we set up the project. You have two choices really: JavaFx if you're comfortable with FXML or Swing which is older but usually taught earlier.

Use either graphics library to draw the Venn diagram. I would probably color them differently to show the different groupings. You'll end up with three: Boys who play, girls who play, and girls/boys who both play. This means you only need two circles overlapping.

The math isn't difficult: Half the boys play, so take half and add that to 2/3 of the girls. That will give you your middle overlapping group. Then boys/girls get each a side respectively.

I don't think anyone's going to write out the entire program here for you though. What I suggest is that you look into Swing or JavaFx documentation.

It's not difficult to get a JavaFx app up and you can even create it using the visual designer so you can use a GUI to create the scene. I'd say that's probably the simplest way to do it. Create two circles, move them so they overlap, color in the quadrants.

You might run into some difficulty with the overlapping section and trying to set the fill color. I'm not certain if JavaFx handles transparency in a way that will mix overlapping colors. I'm leaning towards it will not, but someone has definitely run into this issue, and I'd be willing to guess a quick google search on that topic will yield some results that would be helpful.

I'll answer any questions you have but you need to narrow down what you're asking.