Java IO Tutorial - Java JarFile(File file, boolean verify) Constructor


JarFile(File file, boolean verify) constructor from JarFile has the following syntax.

public JarFile(File file,  boolean verify)  throws IOException


In the following code shows how to use JarFile.JarFile(File file, boolean verify) constructor.

/*from  ww w .j a  v a2s .co  m*/
import java.util.Iterator;
import java.util.jar.Attributes;
import java.util.jar.JarFile;
import java.util.jar.Manifest;

public class Main {
  public static void main(String[] argv) throws Exception {
    JarFile jarfile = new JarFile(new File("filename.jar"), true);

    Manifest manifest = jarfile.getManifest();

    Attributes attrs = (Attributes) manifest.getMainAttributes();

    for (Iterator it = attrs.keySet().iterator(); it.hasNext();) {
      Attributes.Name attrName = (Attributes.Name);

      String attrValue = attrs.getValue(attrName);