The java.util.zip.ZipEntry extends the Zip file entry. java.util.zip.ZipEntry implements java.util.zip.ZipConstants interface.

In this sample code we pass the zip file name as an argument/parameter in the command line argument .

To unzip, create object byte stream and give the size of an array perceiving the length of the text in the file

import java.io.*;

import java.util.zip.*;

public class UnZipObjectSample {

public static void main(String arguments[]) {

try {

BufferedOutputStream bufferedOutputStream = null;

ZipInputStream zipInputStream = new ZipInputStream(new BufferedInputStream(

new FileInputStream(arguments[0])));

ZipEntry zipEntry;

while ((zipEntry = zipInputStream.getNextEntry()) != null) {

int counter;

int initial = 0;

byte text[] = new byte[900];

bufferedOutputStream = new BufferedOutputStream(new FileOutputStream(”sampleOUT.txt”),

900);

while ((counter = zipInputStream.read(text, initial, 900)) != -1) {

bufferedOutputStream.write(text, initial, counter);

}

//flushing and closing bufferedOutputStream

bufferedOutputStream.flush();

bufferedOutputStream.close();

}

} catch (Exception exception) {

//handle generic exceptions

exception.printStackTrace();

}

}

}

import java.io.*;

import java.util.zip.*;

public class UnZipObjectSample {

public static void main(String arguments[]) {

try {

BufferedOutputStream bufferedOutputStream = null;

ZipInputStream zipInputStream = new ZipInputStream(new BufferedInputStream(

new FileInputStream(arguments[0])));

ZipEntry zipEntry;

while ((zipEntry = zipInputStream.getNextEntry()) != null) {

int counter;

int initial = 0;

byte text[] = new byte[900];

bufferedOutputStream = new BufferedOutputStream(new FileOutputStream(”sampleOUT.txt”),

900);

while ((counter = zipInputStream.read(text, initial, 900)) != -1) {

bufferedOutputStream.write(text, initial, counter);

}

//flushing and closing bufferedOutputStream

bufferedOutputStream.flush();

bufferedOutputStream.close();

}

} catch (Exception exception) {

//handle generic exceptions

exception.printStackTrace();

}

}

}