new PR to replace PR# 12052 by @opokharel (eugenp#12054)

opokharel · web-flow · commit abdd577c830b · 2022-04-12T17:25:50.000-07:00
* opokharel's code for "A quick and practical example of Hexagonal Architecture in Java" * opokharel - added unit Tests * [BAEL-5518] by @opokharel * updated Files * updated formatting * whitespaceFix * [BAEL-5518] Create Array of Regex Matches * reCreatingPR * new PR to replace PR# 12052 * moving to new locn
diff --git a/core-java-modules/core-java-regex-2/regexMatchToArray/src/regex/array/RegexMatches.java b/core-java-modules/core-java-regex-2/regexMatchToArray/src/regex/array/RegexMatches.java
@@ -0,0 +1,24 @@
+package regex.array;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.*;
+	
+class RegexMatches {
+	
+    String[] regexMatch(String strSearch)
+	{
+	    List<String> matchesList = new ArrayList<String>();
+	    String stringToSearch = strSearch;
+	    Pattern p1 = Pattern.compile("780{1}\\d{7}");
+	    Matcher m1 = p1.matcher(stringToSearch);
+	    while (m1.find()) 
+	    {
+	    	matchesList.add(m1.group());
+	    }
+	    int sizeOfNewArray = matchesList.size();
+	    String newArrayOfMatches[] = new String[sizeOfNewArray];
+	    matchesList.toArray(newArrayOfMatches);
+	    return newArrayOfMatches;
+	}
+}
diff --git a/core-java-modules/core-java-regex-2/regexMatchToArray/test/regex/array/RegexMatchesUnitTest.java b/core-java-modules/core-java-regex-2/regexMatchToArray/test/regex/array/RegexMatchesUnitTest.java
@@ -0,0 +1,33 @@
+package regex.array;
+
+import static org.junit.jupiter.api.Assertions.*;
+import org.junit.jupiter.api.Test;
+
+import regex.array.RegexMatches;
+
+class RegexMatchesUnitTest {
+
+	@Test
+	void whenFourNums_thenFourMatches() {
+		RegexMatches rm = new RegexMatches();
+		String actual[] = rm.regexMatch("7801111211fsdafasdfa  7802222222  sadfsadfsda7803333333 sadfdasfasd 7804444444");
+		
+		assertArrayEquals(new String[] {"7801111211", "7802222222", "7803333333", "7804444444"}, actual, "success");
+	}
+
+	@Test
+	void whenThreeNums_thenThreeMatches() {
+		RegexMatches rm = new RegexMatches();
+		String actual[] = rm.regexMatch("7801111211fsdafasdfa  780222222  sadfsadfsda7803333333 sadfdasfasd 7804444444");
+		
+		assertArrayEquals(new String[] {"7801111211", "7803333333", "7804444444"}, actual, "success");
+	}
+
+	@Test
+	void whenZeroNums_thenZeroMatches() {
+		RegexMatches rm = new RegexMatches();
+		String actual[] = rm.regexMatch("78011111fsdafasdfa  780222222  sadfsadfsda78033333 sadfdasfasd 7804444");
+		
+		assertArrayEquals(new String[] {}, actual, "success");
+	}
+}
