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Not look at a feature that was introduced in Jollof by Karl Marx before Jolliffe I meant it could only

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be invoked with fixed number of arguments.

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That is you may have a method that has three parameters and so you can look at that exactly the arguments

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.

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But that needn't be the case from giallo 5 onwards from Delphi onwards.

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Methods can have a special type of parameter called quarks which is shorthand for variable length arguments

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and as the name suggests this parameter can become variable number of arguments.

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There is even though it's a single parameter it can take either 0 or 1 or even more than one argument

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as in.

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Also it's got to be the last parameter of the method.

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It can also be the only parameter of the method.

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So it could be the only parameter of a method or if the matter has more than one parameter then the

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broader experimenter must be the last one.

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Now let's look at the syntax of a broad experimenter and also have the invocation looks like syntax

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in most three dots are ellipses.

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Following the parameter type and here is an example as you can see the parameter type and is followed

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by three dots.

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Now when it comes to any location the corresponding argument can be an array of any size or it can also

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be a sequence off any number of comma separated arguments.

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As you can see the values run butare are simply being passed as comma separated values in this because

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the compiler automatically can merge them into an array.

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So basically the arguments are getting passed as an array whether you do it explicitly or not.

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This also means that the blot on experimentor in the method definition is also an order.

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So when we compile the compiler automatically converts of what I've spent ometer into an array.

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So that in the method the watch parameter is treated as any normality.

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Finally the last argument could be omitted altogether.

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So in one example the method for is invoked with only the boolean argument internally and MPO it will

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be passed without blocks barometer.

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So basically the number of parameters has been fixed.

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It's just that the parts parameter gives the flexibility in passing either 0 or more argument values

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.

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It just gives an illusion that the method is infinitely overloaded.

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Dumps of restrictions.

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I just want to reiterate that the water experimentor must be the last barometer when the method has

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more than one parameter and the restriction is that a metric cannot how more than one product barometer

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.

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OK.

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Next is the question itself why products can't we simply use an array as parameter which can also take

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really the moral values.

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Of course we can do that.

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But the main advantage of products is that it provides us with more simpler unflexible in rockish mechanism

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.

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That is if you don't how many values to pass.

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You can simply pass a mask coalmines operator values and if there is nothing to pass you simply need

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not pass anything at all.

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That is you don't have to pass null on an empty at it the compiler automatically passes an empty threat

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.

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So that's just a cleaner syntax on it because if you have a large number of values to pass you can simply

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gather them into an array and pass it to them.

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So that's a main advantage of blocks.

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It gives us a more simpler and flexible invocation mechanism.

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There's a method called Print def which was introduced in Jollof I understood a very nice example of

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using Bartok's.

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It's basically used to print formatted text and disseminate the print L.N. and then statements that

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we already know.

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First parameter is the text to be appended while the second isn't what x parameter type of the second

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parameter here is object which is a class in Java and we can look at it later.

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Let's look at this example in location.

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That's printing data but here the first argument is the text to be printed.

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Well second third and fourth arguments correspond to the warhawks parameter.

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You can also see three person dead symbols in the first argument.

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Basically at runtime the printf method would replace the three person dead symbols with a three argument

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values 1 1 and 1978 that are pastor's input to the experimenter.

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So basically person does ambos so s placeholders here.

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So that's one good example from the Java library itself.

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Next we know that this is a definition of Main method.

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No it blocks it's perfectly valid to replace the input array parameter of what water barometer.

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Next there are certain rules that we need to be at off when it comes to using broad method as an overloaded

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method.

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Let's look at the first rule using an example.

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Let's see if we have this what method call foo.

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Then we cannot have an overloaded non-God method that looks like this.

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So it would be an invalid order as you can see the signature is exactly identical Savatage.

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Barometer is simply an array to.

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Next if you have a bunch of overloaded methods and if one of them is a wad oximeter then doing method

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invocation the blocks method will be the last one to be matched.

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Let's actually look at a simpler time off.

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This second rule variegata method will be the last one to be matched Spoonman.

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That's how I've been added to the basics class.

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And since there are overloaded methods both of them have the same name and they have been named S-box

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since it's a lot Arc's demo and since it's overloading them also.

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So when it blocks or whatever.

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OK so these are the two methods.

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Let's look at the input parameters here.

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So this this one does not have an ox parameter so it has a boolean parameter on three regular parameters

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.

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Second one is a warhawks method.

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The second method has what x parameter so it has a boolean parameter.

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And here is the what x parameter.

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OK and here we are printing in the first metor we are saying inside quarks or not.

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But without what on X and the second we are saying insert Warlock's or not.

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But with what ARX.

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OK and we're also printing the length of the input parameter.

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Ok since this is an array we are printing done lento.

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OK now let's look at the invocation statements here.

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So we have three invoke mission statements.

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OK one of them is passing through and the ralliers one to 3 and the second one is passing through on

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one to 8 values here and the fourth one is just passing on the boolean argument.

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OK and so in the first case it were frustrated as we discussed earlier that it would first try to find

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an exact match in this because there is an exact match.

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One boolean on the 2:59 bluesman fit here.

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So in this case the first order of the method gets invoked in the second and the third case.

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Since there is no exact match the the second overloaded method will be picked which is a white box which

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is a warhawks method.

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OK hon will the length of the array in this case it would be 8 iron in the second case in that in the

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last example it would be zero.

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OK so let's just go ahead and compile and execute this.

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So I'm in the basics directory.

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OK so as you can see here with the first invocation it is inserted but ours a lot but without what varargs

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.

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So that's the first method and for the second invocation where you are passing 8 ralliers comma separated

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values.

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So it is in sidewards overload.

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Read watch on it bench the lines of the array which is on the final one where you are passing just a

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boolean at Bernd's zero as the last.

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OK so that's about it.

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So that's the autoloading feature retrospect do what oximeter.

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OK so just go ahead and play with it.

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You can also pass arrays here instead of just call my separated values.

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So just go ahead and play with it and you can also find the updated program and the resources section

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.

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All right then.

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Thank you.