Question

What is the Comparable interface in JAVA?

Answer 1

Two interfaces with same methodshaving same signature but different return types. Java does not support multiple inheritance but we can achieve effect of multiple inheritance using interfaces. In interfaces, a class can implement more than one interfacewhich can't be done through extends keyword.

Answer 2

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• Comparable , represents an object which can be compared to other objects. For instànce, numbers can be compared, strings can be compared using alphabetical comparison etc.
• Several of the built-in classes in Java implements the Java Comparable interface.