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This article mainly introduces the relevant knowledge of "how to realize java virtual extension method". Xiaobian shows you the operation process through actual cases. The operation method is simple, fast and practical. I hope this article "how to realize java virtual extension method" can help you solve the problem.

Java 8 allows specific methods to be implemented in the interface by simply adding the default keyword before the method. This feature is also called virtual extension method.

interface Formual { double calculate(int a); default double sqrt(int a) { return Math.sqrt(a); }}

2. The Formal interface defines a default method sqrt, which can be used out of the box as long as the calculate method needs to be implemented.

Formula formula = new Formula() { @Override public double calculate(int a) { return sqrt(a * 100); }}; formula.calculate(100); // 100.0formula.sqrt(16); // 4.0 About "Java virtual extension method how to implement" content introduced here, thank you for reading. If you want to know more about industry-related knowledge, you can pay attention to the industry information channel. Xiaobian will update different knowledge points for you every day.

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