Java tutorial
This example reads a ZIP file and decompresses the first entry. import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.OutputStream; import java.util.zip.ZipEntry; import java.util.zip.ZipInputStream; public class Main { public static void main(String[] argv) throws Exception { String inFilename = "infile.zip"; ZipInputStream in = new ZipInputStream(new FileInputStream(inFilename)); ZipEntry entry = in.getNextEntry(); String outFilename = "o"; OutputStream out = new FileOutputStream(outFilename); byte[] buf = new byte[1024]; int len; while ((len = in.read(buf)) > 0) { out.write(buf, 0, len); } out.close(); in.close(); } }