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So carrying on with conditional statements, we're going to look at the switch case statement now as



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to which case does the same functionality really as if all else.



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But it's a little bit cleaner to read and a little bit cleaner to write.



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If I just jump dump in something, it's going to take me ages to type, which is much better if I just



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dump it in.



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We have, first of all, some character, which in this case is the letter Z.



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The switch case statement starts with a switch statement where we say switch some character.



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So this is looking at the variable up here and it's saying in the case that that variable is a then



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I want you to do whatever the following lines of code are in the case that it said, do this following



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line of code in the case that it is B or why that's not.



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And that is or.



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Then it's going to be second last letter of the alphabet.



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It also should be second letter of the alphabet.



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Let's change that second, first or last letter of the alphabet, and then just like the if else, the



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P&L statement covers all eventualities.



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In this case, the default covers all the remaining eventualities, print some other character.



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So if we run that, we should get last letter of the alphabet.



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If I drop that to a B.



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We should get a MacBook.



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You got this second, last, second, first or last letter of the alphabet.



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OK, so that's the switch case in a nutshell.



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Now, the switch case has many features that we can implement.



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And I'm just going to copy over this code here, because, again, it's long and convoluted.



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So we have an approximate count of 62.



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We have counted things, moons orbiting Saturn and we have a natural count.



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Now, these three variables are going to combine with the switch case can statement to provide a human



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readable output at the end, which is this.



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And the way we're going to go about that is to look at the approximate count.



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And say if there are zero in that approximate count, then the natural count is equal to no, as in



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we're turning a number into an approximation or a natural approximation that humans understand.



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So you wouldn't say why?



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You would say there is zero moons orbiting whatever planet Pluto, but it's more likely you would say



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there are no moons orbiting Pluto.



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In the case of one or less than five, so in that range, one, two, three, four, we're going to



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have a few.



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In the case of five to 12, we're going to have several.



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Twelve to one hundred, dozens of one hundred thousand.



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Hundreds of and of course, anything else is just going to be many or an s load, if you like.



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So once we run through this, 62 will come out to dozens of.



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And it will say there are dozens of.



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Counted things, which is moons orbiting Saturn, so we hit play on that.



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There are dozens of moons orbiting Saturn, so this is an example of a more expansive switch case statement



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where we're actually taking ranges into account.



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Now, there are many other things we can do, switch cases, we can assign variables and things like



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that.



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But we're not going to do that here because you don't actually need it that often.



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In my experience, it comes a time if you do need it.



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OK, do I have homework?



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Oh, yes.



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Here it is.



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Create a switch statement to call someone young, middle aged or old, so we did this in the previous



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lesson with the if else, but now you can do it with a switch case.