3- Anonymous Inner Classes

Jun 26, 2026 22:49 · 1:23 · English · Whisper Turbo · 2 Wasemaji

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So in the last video we passed a new instance of our console printer

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class to a Greek method As I told you sometimes we don't want to explicitly

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create a class to implement an interface Perhaps we want to implement an

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interface only once and use it for a single purpose We don't want to reuse

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that class.

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So that's where we use anonymous inner classes So

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instead of creating a new instance of the console printer class here

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we can type new

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printer.

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So we type the name of the interface and press enter.

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What we have here is called an anonymous inner

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class.

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It's anonymous because this class doesn't have a name.

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It's just an implementation and we call it an inner class because we're

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using this inside a method.

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Okay, so in this class we're

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implementing the print method.

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Here we can use a print statement to print this

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message.

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Now when we run this program

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we get the exact same result.

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So this is how we can use an anonymous inner class.

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With anonymous inner classes,

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we can achieve the same result by writing less code.

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But Java 8 introduced a better and more concise way to achieve

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the same result.

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That's called a lambda expression and we're going to look at that next.

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