4. Calling

Now we need to change all the calls to the dance in the middle method back in the my first method method.

[Q5.4.1]: Why do you think we need to change each of these calls?

Go ahead and select that method, so that you can see its code in the code pane. Take a look at the calls to dance in the middle. Do you see any change?

Alice has automatically put in a value for the new turns parameter, on each call! That's helpful. Every time, the value of 1 has been used - we call this a default value - with no further knowledge available, Alice has picked an arbitrary, but suitable, value.

We, however, don't want everyone just spinning once - if we did, we wouldn't have bothered creating the new parameter! Go ahead now and change those 1's into different values - for each call, press on the little down arrow next to the turns = 1 and you'll be able to specify a different value for the call. Remember, if you don't want to use one of the values in the menu, you can choose the other option, and type in the value you want.

Now go ahead and run the code. Does it operate as you expected?

Currently all of the dancers will still do 2 spins. We never put the parameter in the code. Do that now. Edit the dance in the middle method. Then drag the turns parameter into the code and replace the 2 revolutions in the line dancer turn left.

Run the code again. Does it NOW operate as expected?

<< Back Next >>