WEBVTT

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Hi everyone.

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Welcome back to this tutorial.

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In this tutorial, we will code and explore some of the issues that we might face with the introduction

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of multiple interfaces.

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In order to demonstrate this, I'm going to create an interface.

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All interface for.

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And.

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We take a look at it Interface one and interface four have the similar methods.

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Right?

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I'm going to create an implementation class called client one four.

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Okay.

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This is going to implement interface one and interface four.

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That's the reason why I named it as client one four.

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So this is going to implement.

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The interface one and interface for.

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As soon as I do it, we take a look at it is giving some compilation issue.

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.14 inherits unrelated default methods for method A from types interface one and interface for.

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The reason why we get this compilation issue is that it has a method called.

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Method A.

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Basically, interface one has a method called method A and interface four also has a method called method

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A with a similar kind of method signature.

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Now Java is so confused and it is not sure which method it needs to resolve when we call that.

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So the actual expectation in these kind of scenarios is that you have to implement that method basically

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not implement.

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You have to override that method in the actual implementation class.

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That's the only way to resolve this kind of issues.

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So this is something which you have to keep in your mind whenever you are implementing interfaces.

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If both the interface have a similar method and the only way to solve these kind of issues is to implement

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that method in the implementation class itself.

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And thus I'm going to name this one as client.

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One for class.

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Now let's call this one.

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Create an instance.

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Line one for line, one for equal to new client one.

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For now, call the method.

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Wanna run this one?

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You take a look at it, it printed the result as expected.

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So this is one thing which you have to keep in your mind.

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If you have two methods of similar method signature, then you have to override the similar method in

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your implementation class.

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With this, we came to the end of this tutorial.

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Thank you for watching.