Merge pull request mouredev#6620 from martinbohorquez/java#41

mouredev#41 - Java

Author: Roswell468

Roadmap/41 - CAMISETA RAR/java/martinbohorquez.java

@@ -0,0 +1,63 @@
+import java.io.*;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+import java.util.zip.ZipOutputStream;
+
+public class martinbohorquez {
+    public static void main(String[] args) throws FileNotFoundException {
+        File sourceFile = new File("AZ900-2024.pdf");
+        File zipFile = zipFile(sourceFile);
+        System.out.printf("El archivo '%s' ha sido comprimido: %s%n", sourceFile, zipFile);
+        File unzipFile = unzipFile(zipFile);
+        System.out.printf("El archivo '%s' ha sido descomprimido: %s%n", zipFile, unzipFile);
+    }
+
+    private static File zipFile(File sourceFile) throws FileNotFoundException {
+        if (!sourceFile.exists()) throw new FileNotFoundException("El archivo no existe: " + sourceFile);
+
+        String fileName = sourceFile.toString()
+                .substring(0, sourceFile.toString().lastIndexOf("."));
+        File targetFile = new File(fileName.concat(".zip"));
+
+        try (FileOutputStream fos = new FileOutputStream(targetFile);
+             ZipOutputStream zipOut = new ZipOutputStream(fos);
+             FileInputStream fis = new FileInputStream(sourceFile)) {
+
+            ZipEntry zipEntry = new ZipEntry(sourceFile.getName());
+            zipOut.putNextEntry(zipEntry);
+
+            byte[] buffer = new byte[1024];
+            int length;
+            while ((length = fis.read(buffer)) >= 0) zipOut.write(buffer, 0, length);
+
+            zipOut.closeEntry();
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+        return targetFile;
+    }
+
+    private static File unzipFile(File sourceFile) throws FileNotFoundException {
+        if (!sourceFile.exists()) throw new FileNotFoundException("El archivo no existe: " + sourceFile);
+        File targetFile = null;
+        try (FileInputStream fis = new FileInputStream(sourceFile);
+             ZipInputStream zipOut = new ZipInputStream(fis)) {
+
+            ZipEntry zipEntry;
+
+            if ((zipEntry = zipOut.getNextEntry()) != null) {
+                targetFile = new File("unzip-" + zipEntry.getName());
+                try (FileOutputStream fos = new FileOutputStream(targetFile)) {
+                    byte[] buffer = new byte[1024];
+                    int length;
+                    while ((length = zipOut.read(buffer)) >= 0) fos.write(buffer, 0, length);
+                }
+
+                zipOut.closeEntry();
+            }
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+        return targetFile;
+    }
+}