Web Reference: Mar 25, 2026 · Java Method References are a shorthand way to refer to an existing method without invoking it. They were introduced in Java 8 to make lambda expressions shorter, cleaner, and more readable. Method references use the double colon (::) operator and are mainly used with functional interfaces. Mar 26, 2025 · In this quick tutorial, we learned what method references are in Java and how to use them to replace lambda expressions, thereby improving readability and clarifying the programmer’s intent. You use lambda expressions to create anonymous methods. Sometimes, however, a lambda expression does nothing but call an existing method. In those cases, it's often clearer to refer to the existing method by name. Method references enable you to do this; they are compact, easy-to-read lambda expressions for methods that already have a name.
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