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In the structure, we're going to see some examples to method first create a new class for these two.

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So rocklike new Java class function and hit enter now copy a method from one of the files you've been

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created before.

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Copy and paste it here.

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Hit enter again, as you see, there is a static key word in the definition of my method in Java.

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There is a rule that static methods can code on the other static methods.

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I will tell you why we have to do this, and I will share more details about the static keyword in a

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separate lecture later in this course.

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So we are going to add static to every function we will create here.

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So first, create a function that doesn't have any parameters and it doesn't have a return value.

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This function is going to print out something like hello or Good morning, I will go with hello.

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So.

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Static

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void say hello.

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It is the function name, parentheses, curly braces.

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It's a. system that all that brings Winterland double quotes.

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Hello.

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Now run our code.

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And as you can see, nothing is printed out, yes, because we didn't call this function to do that

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type in the name of the method in the main method.

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Just like this, so say hello, and that's it now we're Amarcord again.

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Until it was printed out.

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Moving on to a function that has a parameter but that still doesn't have a return value, that function

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is going to use a loop to print out something on the screen based on the parameter it gets.

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OK, so static void.

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Let's call this blackboard punishment.

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Parentheses and curly braces and in the parentheses, there is going to be a paint repeat number.

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As I said, we are going to use a follow up here.

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So for.

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And I equals one semicolon.

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I should be less than or equal, then repeat no more than a semicolon I Lospalos and the curly braces

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and the not into the text is printed out really up to you.

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I'm going to use being White Sox.

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So standard outdoor printer and double codes being right.

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Sox now call our function in the main method so that both punishment and use five as a parameter.

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Now run our code.

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Now, being right Sucks is printed out five times after hello.

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Now I will show you how to create the discount price function with one parameter, then I will show

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you an example of overloading.

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All right, start with static.

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Double the return type, the function name get.

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Eight per cent of the second class.

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Parentheses and an end price as a parameter in curly braces and.

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And the return statement return.

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Rice multiplied by zero point nine and a SEMICON to print out the 10 percent of price we're going to

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use system that allowed that printer and function and the main method.

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So system that allowed that printer on top of codes.

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The price with 10 percent of.

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Colin in the space plus and the function name get 10 percent of it, enter and use 20 thousand.

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Now run our code.

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And as you can see, eighteen thousand appeared on the screen.

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Now let's move on to overloading

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static.

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Double.

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The function name get discount price fantasy's.

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The first is and price.

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Coma then and percent curly braces.

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And the return statement return the price multiplied by.

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Percent and divided by a hundred.

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Intelligence out this, let's see why surprise percent divided by 100 integer division and floating

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point context.

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Our code can run this way, but the problem is that in the expression we have integers only, but it

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should return a double and an integer divided by another integer would give another integer, and that

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while you would convert it to double at the end, it would lead to weird numbers to make it work correctly.

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We have to convert one of our integers to double the easiest way to convert 100 to double by adding

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a dot and a zero to it.

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And now it's fine.

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Now move on our last function in this lecture, so static.

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Double.

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Get discount price, so the function name is the same prentice's.

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Double price

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coma and percent curly braces hit enter and the return statement.

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Price multiplied by the percent and divided by a hundred.

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And they semicon and as you can see, we have a double in the return statement, the price, so we don't

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have to convert any of our values into a double.

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Now let's use the functions we created.

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And as you can see, they are great out because they are not used.

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So go back to the main method.

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Double D-line changed the tax to 50 percent and change the function name to get discount price.

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Use the inversion.

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We need the second parameter here, which is going to be 50.

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Now, just let's scroll down and as you can see, the function that uses an end is not great out anymore

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because we're going to use this function and not this one here.

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Now, double D-line again, now let's say it's going to be 40 percent change the value to a double value,

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which is going to be a point fifty five.

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And change the percentage to 60.

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OK.

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Now, all the functions are yellow, scroll back and run our code.

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Everything seems fine, I hope it made clear how functions can be created and how overloading works,

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if not, feel free to ask.

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See you in the next lecture.