BAEL-6644-read-zip-entries (#14321)

* read zip file entries

* add unit test

* update test code

core-java-modules/core-java-20/src/main/java/com/baeldung/zipentries/ZipEntryReader.java

@@ -0,0 +1,31 @@
+package com.baeldung.zipentries;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Enumeration;
+import java.util.Scanner;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+
+public class ZipEntryReader {
+
+    public static void readZipEntries(String filePath) throws IOException {
+        try (ZipFile zipFile = new ZipFile(filePath)) {
+            Enumeration<? extends ZipEntry> entries = zipFile.entries();
+            while (entries.hasMoreElements()) {
+                ZipEntry entry = entries.nextElement();
+                // Check if entry is a directory
+                if (!entry.isDirectory()) {
+                    // Read and process the entry contents using the inputStream
+                    try (InputStream inputStream = zipFile.getInputStream(entry);
+                         Scanner scanner = new Scanner(inputStream);) {
+                        while (scanner.hasNextLine()) {
+                            String line = scanner.nextLine();
+                            System.out.println(line);
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

core-java-modules/core-java-20/src/test/java/com/baeldung/zipentries/ZipEntryReaderTest.java

@@ -0,0 +1,17 @@
+package com.baeldung.zipentries;
+
+import org.junit.Test;
+
+import java.io.IOException;
+import java.net.URISyntaxException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+public class ZipEntryReaderTest {
+
+    @Test
+    public void givenZipFile_thenReadEntriesAndValidateContent() throws URISyntaxException, IOException {
+        Path zipFilePath = Paths.get(getClass().getClassLoader().getResource("zipFile.zip").toURI());
+        ZipEntryReader.readZipEntries(zipFilePath.toString());
+    }
+}