What is Pattern matching for instanceof in Java?

Pattern matching for instanceof is a feature introduced in Java 16 that simplifies the way developers can use the `instanceof` operator. Traditionally, a common use-case for the `instanceof` operator involved casting the object after checking its type. With pattern matching, this can be done in a more concise and readable way.

With pattern matching, developers can check if an object is an instance of a specific class and simultaneously cast it to that class in a single operation, which eliminates the need for an explicit cast.

This feature enhances code readability and reduces boilerplate code, making Java programming more efficient.

// Example of Pattern Matching for instanceof in Java public class PatternMatchingExample { public static void main(String[] args) { Object obj = "Hello, World!"; // Using pattern matching with instanceof if (obj instanceof String str) { // No need for explicit cast System.out.println(str.toUpperCase()); // Outputs: HELLO, WORLD! } } }

Pattern matching instanceof Java 16 type checking programming code readability

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