Title: Regular Expression: \z vs \Z Anchors in Java (#13994)

Hello,
This commit related to the article entitled "Regular Expression: \z vs \Z Anchors in Java"

core-java-modules/core-java-regex-2/src/test/java/com/baeldung/regex/z_regexp/ZRegularExpressionUnitTest.java

@@ -0,0 +1,35 @@
+package com.baeldung.regex.z_regexp;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+public class ZRegularExpressionUnitTest {
+    @Test
+    public void givenCreditCardNumber_thenReturnIfMatched() {
+        String creditCardNumber = "1234567890123456";
+        String pattern = "\\d{16}\\z";
+        Assertions.assertTrue(creditCardNumber.matches(pattern));
+    }
+
+    @Test
+    public void givenLogOutput_thenReturnIfMatched() {
+        String logLine = "2022-05-01 14:30:00,123 INFO Some log message";
+        String pattern = ".*message\\z";
+        Assertions.assertTrue(logLine.matches(pattern));
+    }
+
+    @Test
+    public void givenEmailMessage_thenReturnIfMatched() {
+        String myMessage = "Hello HR, I hope i can write to Baeldung\n";
+        String pattern = ".*Baeldung\\s*\\Z";
+        Assertions.assertTrue(myMessage.matches(pattern));
+    }
+
+    @Test
+    public void givenFileExtension_thenReturnIfMatched() {
+        String fileName = "image.jpeg";
+        String pattern = ".*\\.jpeg\\Z";
+        Assertions.assertTrue(fileName.matches(pattern));
+    }
+
+}