add chapter10

Author: codejsha

README.md

@@ -15,10 +15,10 @@ This repository contains the code examples from the book [Modern Java in Action]
 - Chapter 7. Parallel data processing and performance | [java](https://github.com/codejsha/modern-java-in-action/tree/main/src/main/java/com/example/demo/chapter07)([test](https://github.com/codejsha/modern-java-in-action/tree/main/src/main/test/com/example/demo/chapter07))
 - Chapter 8. Collection API enhancements | [java](https://github.com/codejsha/modern-java-in-action/tree/main/src/main/java/com/example/demo/chapter08)([test](https://github.com/codejsha/modern-java-in-action/tree/main/src/main/test/com/example/demo/chapter08))
 - Chapter 9. Refactoring, testing, and debugging | [java](https://github.com/codejsha/modern-java-in-action/tree/main/src/main/java/com/example/demo/chapter09)([test](https://github.com/codejsha/modern-java-in-action/tree/main/src/main/test/com/example/demo/chapter09))
+- Chapter 10. Domain-specific languages using lambdas | [java](https://github.com/codejsha/modern-java-in-action/tree/main/src/main/java/com/example/demo/chapter10)([test](https://github.com/codejsha/modern-java-in-action/tree/main/src/main/test/com/example/demo/chapter10))
 
 (work in progress)
 
-- Chapter 10. Domain-specific languages using lambdas
 - Chapter 11. Using Optional as a better alternative to null
 - Chapter 12. New Date and Time API
 - Chapter 13. Default methods

src/main/java/com/example/demo/chapter10/PrintNumber.java

@@ -0,0 +1,26 @@
+package com.example.demo.chapter10;
+
+import lombok.extern.slf4j.Slf4j;
+
+import java.util.List;
+import java.util.function.Consumer;
+
+@Slf4j
+public class PrintNumber {
+    public static void printNumbersByAnonymousClass(List<String> numbers) {
+        numbers.forEach(new Consumer<String>() {
+            @Override
+            public void accept(String number) {
+                log.info("{}", number);
+            }
+        });
+    }
+
+    public static void printNumbersByLambda(List<String> numbers) {
+        numbers.forEach(number -> log.info("{}", number));
+    }
+
+    public static void printNumbersByMethodReference(List<String> numbers) {
+        numbers.forEach(System.out::println);
+    }
+}