init commit (#11643)

core-java-modules/core-java-string-operations-4/src/main/java/com/baeldung/endswithpattern/StringEndsWithPattern.java

@@ -0,0 +1,45 @@
+package com.baeldung.endswithpattern;
+
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+
+public class StringEndsWithPattern {
+
+    public static boolean usingStringEndsWithMethod(String text, String suffix) {
+        if (text == null || suffix == null) {
+            return false;
+        }
+        return text.endsWith(suffix);
+    }
+
+    public static boolean usingStringMatchesMethod(String text, String suffix) {
+        if (text == null || suffix == null) {
+            return false;
+        }
+        String regex = ".*" + suffix + "$";
+        return text.matches(regex);
+    }
+
+    public static boolean usingStringRegionMatchesMethod(String text, String suffix) {
+        if (text == null || suffix == null) {
+            return false;
+        }
+        int toffset = text.length() - suffix.length();
+        return text.regionMatches(toffset, suffix, 0, suffix.length());
+    }
+
+    public static boolean usingPatternClass(String text, String suffix) {
+        if (text == null || suffix == null) {
+            return false;
+        }
+        Pattern pattern = Pattern.compile(".*" + suffix + "$");
+        return pattern.matcher(text)
+            .find();
+    }
+
+    public static boolean usingApacheCommonsLang(String text, String suffix) {
+        return StringUtils.endsWith(text, suffix);
+    }
+
+}

core-java-modules/core-java-string-operations-4/src/test/java/com/baeldung/endswithpattern/StringEndsWithPatternUnitTest.java

@@ -0,0 +1,42 @@
+package com.baeldung.endswithpattern;
+
+import static org.junit.Assert.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+public class StringEndsWithPatternUnitTest {
+
+    private static final String TEXT = "Welcome to baeldung.com";
+    private static final String SUFFIX = "com";
+
+    @Test
+    public void givenStringAndSuffix_whenUsingStringEndsWith_thenCheck() {
+
+        assertTrue(StringEndsWithPattern.usingStringEndsWithMethod(TEXT, SUFFIX));
+    }
+
+    @Test
+    public void givenStringAndSuffix_whenUsingStringMatches_thenCheck() {
+
+        assertTrue(StringEndsWithPattern.usingStringMatchesMethod(TEXT, SUFFIX));
+    }
+
+    @Test
+    public void givenStringAndSuffix_whenUsingStringRegionMatches_thenCheck() {
+
+        assertTrue(StringEndsWithPattern.usingStringRegionMatchesMethod(TEXT, SUFFIX));
+    }
+
+    @Test
+    public void givenStringAndSuffix_whenUsingPatternClass_thenCheck() {
+
+        assertTrue(StringEndsWithPattern.usingPatternClass(TEXT, SUFFIX));
+    }
+
+    @Test
+    public void givenStringAndSuffix_whenUsingApacheCommonsLang_thenCheck() {
+        
+        assertTrue(StringEndsWithPattern.usingApacheCommonsLang(TEXT, SUFFIX));
+    }
+
+}