Java Utililty Methods Zip File

FileOutputStream fos = new FileOutputStream(target);
ZipOutputStream zos = new ZipOutputStream(fos);
FileInputStream fis = new FileInputStream(source);
BufferedInputStream bis = new BufferedInputStream(fis);
ZipEntry entry = new ZipEntry(source.getCanonicalFile().getName());
zos.putNextEntry(entry);
byte[] barray = new byte[1024];
int bytes;
...

FileOutputStream fo = new FileOutputStream(target);
ZipOutputStream zo = new ZipOutputStream(fo);
zo.setMethod(ZipOutputStream.DEFLATED);
FileInputStream fi = new FileInputStream(source);
BufferedInputStream bi = new BufferedInputStream(fi);
ZipEntry ze = new ZipEntry(source.getName());
zo.putNextEntry(ze);
byte[] dt = new byte[1024];
...

File[] files = null;
if (source.isDirectory()) {
    files = source.listFiles();
} else {
    files = new File[1];
    files[0] = source;
String pathName;
...

File zippedFile = new File(sourceFile.getAbsolutePath() + ".zip");
zipFile(sourceFile, zippedFile);
return zippedFile;

FileInputStream fis = new FileInputStream(zipfile);
try {
    ZipEntry anEntry = new ZipEntry(name);
    if (DEBUG)
        System.out.println("Add file : " + name);
    zos.putNextEntry(anEntry);
    byte[] readBuffer = new byte[BUFFER_SIZE];
    for (int bytesIn = fis.read(readBuffer); bytesIn != -1; bytesIn = fis.read(readBuffer)) {
...

zipFile(source, new File(source.getAbsolutePath() + ZIP_SUFFIX));

if (!file.equals(target)) {
    final ZipEntry ze = new ZipEntry(path);
    ze.setTime(file.lastModified() + 1999);
    ze.setMethod(ZipEntry.DEFLATED);
    zip.putNextEntry(ze);
    final FileInputStream in = new FileInputStream(file);
    try {
        int bufsize = 8 * 1024;
...

@SuppressWarnings("rawtypes")
List fl = getAllFilePath(filedir);
File f = new File(zippath);
try {
    FileOutputStream fo = new FileOutputStream(f);
    ZipOutputStream zo = new ZipOutputStream(fo);
    for (int i = 0; i < fl.size(); i++) {
        File ff = (File) fl.get(i);
...

try {
    FileInputStream fis = new FileInputStream(filePath);
    BufferedInputStream bis = new BufferedInputStream(fis);
    String fileNameEntry = filePath.substring(iBaseFolderLength).replace(File.separatorChar, '/');
    ZipEntry fileEntry = new ZipEntry(fileNameEntry);
    jos.putNextEntry(fileEntry);
    byte[] data = new byte[1024];
    int byteCount;
...

String[] filenames = new String[] { fileName };
byte[] buf = new byte[1024];
String outFilename = fileName + ".zip";
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(filePath + "/" + outFilename));
for (int i = 0; i < filenames.length; ++i) {
    FileInputStream in = new FileInputStream(filePath + "/" + filenames[i]);
    out.putNextEntry(new ZipEntry(filenames[i]));
    boolean len = false;
...