3- Anonymous Inner Classes

Jun 26, 2026 22:49 · 1:23 · English · Whisper Turbo · 2 Høyttalere
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S… Speaker 1 (3- Anonymous Inner Classes)
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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