Java JarFile .getInputStream (ZipEntry ze)

public InputStream getInputStream(ZipEntry ze)    throws IOException

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
//ww  w  .  j a va  2 s .c  om
public class Main {
  public static void main(String args[]) throws IOException {
    if (args.length != 2) {
      System.out.println("Please provide a JAR filename and file to read");
      System.exit(-1);
    }
    JarFile jarFile = new JarFile(args[0]);
    JarEntry entry = jarFile.getJarEntry(args[1]);
    InputStream input = jarFile.getInputStream(entry);
    process(input);
    jarFile.close();
  }

  private static void process(InputStream input) throws IOException {
    InputStreamReader isr = new InputStreamReader(input);
    BufferedReader reader = new BufferedReader(isr);
    String line;
    while ((line = reader.readLine()) != null) {
      System.out.println(line);
    }
    reader.close();
  }
}