import net.lingala.zip4j.ZipFile;
import net.lingala.zip4j.exception.ZipException;
import net.lingala.zip4j.progress.ProgressMonitor;
import net.lingala.zip4j.progress.ProgressMonitor.State;
import net.lingala.zip4j.progress.ProgressMonitor.Result;

import java.io.IOException;

public class SampleClass{

  public static void main(String[] args) 
                     throws IOException,
                            InterruptedException{
    ZipFile zip = 
    new ZipFile("myzip.zip", 
                "password".toCharArray());
    zip.setRunInThread(true);
    
    ProgressMonitor pm = 
    zip.getProgressMonitor();
    zip.extractAll("extracted");
    
    while(!pm.getState().equals
         (ProgressMonitor.State.READY)){
      System.out.println("Percentage: " + 
                         pm.getPercentDone());
      System.out.println("File: " + 
                         pm.getFileName());
      System.out.println("Task: " + 
                         pm.getCurrentTask());
                         
      Thread.sleep(50);
    }
    
    if(pm.getResult().
       equals(ProgressMonitor.Result.SUCCESS))
       System.out.println("Success!");
       
    else if(pm.getResult().
            equals(ProgressMonitor.Result.ERROR))
            System.err.println("Error: " + 
            pm.getException().getMessage());
            
    else if(pm.getResult().
            equals(ProgressMonitor.Result.CANCELLED))
            System.out.println("Operation Cancelled!");
  }
}