Sample java code to unzip a file to current directory.

Unziper.java

package com.github.viettd.how.to;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

public class Unziper {

	private static final String INPUT_FILE = "/home/viettd/java-how-to/java-how-to.zip";

	public static void main(String[] args) {
		unzip(INPUT_FILE);
	}

	public static List<String> unzip(String zipFilePath) {
		try {
			File zipFile = new File(zipFilePath);
			try (ZipInputStream inputStream = new ZipInputStream(new FileInputStream(zipFile))) {
				List<String> fileList = new ArrayList<>();
				ZipEntry entry = inputStream.getNextEntry();
				while (entry != null) {
					File newFile = new File(zipFile.getParent() + File.separator + entry.getName());
					new File(newFile.getParent()).mkdirs();
					if (!entry.isDirectory()) {
						try (FileOutputStream outputStream = new FileOutputStream(newFile)) {
							int length;
							byte[] buffer = new byte[1024];
							while ((length = inputStream.read(buffer)) > 0) {
								outputStream.write(buffer, 0, length);
							}
						}
					}
					fileList.add(newFile.getAbsolutePath());
					entry = inputStream.getNextEntry();
				}
				inputStream.closeEntry();
				return fileList;
			}
		} catch (Exception e) {
			System.out.println(String.format("unzip error: %s", e));
			return Collections.emptyList();
		}
	}
}