ZipEntry.getCompressedSize() has the following syntax.
public long getCompressedSize()
In the following code shows how to use ZipEntry.getCompressedSize() method.
import java.util.Enumeration; import java.util.zip.ZipEntry; import java.util.zip.ZipFile; /* www . j a va 2 s .com*/ public class Main { public static void main(String[] args) throws Exception { String zipname = "data.zip"; ZipFile zipFile = new ZipFile(zipname); Enumeration enumeration = zipFile.entries(); while (enumeration.hasMoreElements()) { ZipEntry zipEntry = (ZipEntry) enumeration.nextElement(); System.out.println(zipEntry.getCompressedSize()); } } }