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This short video is a challenge to give

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you a chance to practice some of what

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we've done so far. So the first part of

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the challenge is to modify the show

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function in the Player class, so that it

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also prints the details for the weapon

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that the players have. Now as well as

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printing the Players name, lives, level

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and score, it should also print the name

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of their weapon, as well as the damage

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that that weapon inflicts. Now use the

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modified show function in main, to print

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out tim's details, including the weapon,

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instead of just the weapon. So in other

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words, instead of just printing tim dot

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weapon.name, use the modified show

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function. Now as a hint, review the

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video on String concatenation and

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interpolation, to remind yourself how to

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include more complex expressions in a

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string. Now for the second part of the

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challenge, modify the code in the main

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function, so that louise gets the sword

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before tim replaces it with a spear. So

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the point here is to give Louise the

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same sword that Tim had, not to create a

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new one. And use the show function to

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display the details for louise, to check

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the your code's working. So that's it -

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that's the challenge. Pause the video

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here and see how you go at the challenge,

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and I'll see you when you get back.

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So there's very rarely one way to write

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code, so your solution may well be

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different to mine. The real test is that

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the weapon details are displayed when

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you call the show function. So for my

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solution, I'm going to include the two

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properties of the weapon in the output

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string. So I'm gonna go back to the

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Player class. I'm gonna come down here

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below score. I'm going to type

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weapon : then the dollar sign, left and

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right curly braces, weapon.name. Then

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on the next line, it's going to be

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damaged, so damage :

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dollar sign left and right curly braces,

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weapon.damageInflicted. Now remember

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that we need to enclose more complex

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expressions in curly braces, as I've done

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here. So if you try that without the

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curly braces, it'll actually print out

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the dot name as a literal string. So the

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code, for example, on line 14, without

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the curly braces - you'll get a dot with

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the characters n a m e printed out

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instead. Alright, so now that we've done

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that, in our main function - let's go back

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to that - and what we want to do is

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replace the println statements with a

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call to tim's show function. So let's do

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that first.

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So this is the one down here now, as you can

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see on line 25. So I'm going to comment

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that line 25 out, then on the next

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line, I'm going to do a tim.dot show.

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So let's run the program to make sure

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that it's actually working. Now if you

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get this situation pop up - well you can see

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what's happened here and it's not actually

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printing out the full values, and it seems

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to be not taking the changes that we've

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made - make sure that you do go back and

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do a Clean Project, and go back and make

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the module again. And then go back and

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right-click here and select Run Main

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kt. That should fix it generally, and you

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can see it has done that now - we're

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seeing the new code output. So it appears to

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have been cached - or the previous version

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of running the code was cached - and by

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doing it this way, we're clearing it out

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and making sure that we're running the

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latest version, and you can see the

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output is showing there on the screen.

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We've got the revised show function

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which is also working at the top, if we

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scroll up as well, the weapon and the

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damage, and that clearly wasn't working

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before we made the change.

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But the change we're looking at here, is

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tim has got weapon, sword and damage

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showing. Alright, so that's the first part

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of the challenge. The second part of the

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challenge; what we can do is we can

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assign, or we should assign, tim's

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weapon to louise, but before tim picks up

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the spear. So the code for that, we're

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going to come down here, after the tim dot

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show line. We're going to type louise dot

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weapon is equal to tim.weapon, and

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on the next line, louise.show. 

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I'll just make a bit of space there.

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Alright, so you can think of this as

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louise taking the sword from tim. So

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we're assigning tim's weapon to louise's

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weapon property on line 28, and then

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obviously, line 29 is showing it. Now it's

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important to do that before assigning

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the spear to tim. It won't work if we try

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to do it the other way around, because

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there'll be no reference to the sword,

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once tim gets the spear. So let's just

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try running this to make sure that it

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works. And again, you can see that we've

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got these funny caching issues, which may

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or may not come up for you. We can't see

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any output showing from louise, so we

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can actually just try running it here

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first. That doesn't do any good. We can

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just try doing a clean again. We can

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make the module again. It's frustrating

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having to do this - I hope Google will fix

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this soon. We'll try running it again, and

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this time we're getting the right output -

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you can see we're getting louise's

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output showing on the screen there, now.

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And again, you can see in this case, that

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we've got tim showing the sword. Louise

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is now seeing, we're seeing the sword

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for louise, then we're getting the

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output of the spear only and that's

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because, at the moment, we're just

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printing the weapon.name on line 32. So

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we could fix that as well. Let's do that -

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let's comment that out - and we'll put tim

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show. We'll run that and see whether

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that works for us, and unfortunately it

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doesn't work again. We're not really having much

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fun with his are we? So we'll actually,

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clean again, we'll make the module. We'll

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try running it again, and that's better. Now

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you can see we've got the output, and

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this time we've got the first one - the

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first line, which was this output line

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here, on line 26. We're seeing tim's got

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the sword. Then the output on line 29 is

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louise output, and then finally, the

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output on line 33, we've seen the weapon

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and the damage as well. Alright, so

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that's the challenge solved. Now there

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are other ways you could have solved

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this; you may have created a new sword

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variable, for example, and assigned

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tim's weapon to that first. That would

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also work, and as long as louise has

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the sword when you run the program, then

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Congratulations. Alrighty, so that's

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the challenge completed. So I'm going to

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stop this video here. In the next video,

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we're going to let our players have more

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than one instance of an object - some loot

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that they'll be picking up. So I'll see

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you in the next video.