CODEWITHSUNDEEP
javalambdajava-8anonymous-class
Anderson
Anderson

Reputation: 2752

Is lambda expression an improved and essential version of anonymous class in java?

May I say that?

Anonymous class looks like OO style while lambda expression makes it functional style.

Upvotes: 2

Views: 331

Answers (1)

newacct
newacct

Reputation: 122449

Are you asking about lambdas in Java 8?

A Java 8 lambda is a simplification for a subset of anonymous classes -- namely, anonymous classes that extends a "functional interface", and has exactly one method, does not use this, does not use initializer blocks, and has no fields. (However, this is a very common use case for anonymous classes.)

In other words, any lambda expression can be re-written into an equivalent anonymous class creation expression. But only some (not all) anonymous class creation expressions can be re-written into a lambda expression.

Upvotes: 5

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