Web Reference: Jul 23, 2015 · A new concept is introduced in Java 8 called default methods. Default methods are those methods which have some default implementation and helps in evolving the interfaces without breaking the existing code. Sep 6, 2025 · Java 8 introduced default methods in interfaces, allowing methods with a body (implementation). This makes interfaces more flexible and backward-compatible. Interfaces can now have both abstract and default methods. Default methods provide backward compatibility without breaking existing code. You specify that a method definition in an interface is a default method with the default keyword at the beginning of the method signature. All method declarations in an interface, including default methods, are implicitly public, so you can omit the public modifier.
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