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java zip ½âѹËõ

import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Enumeration;
import java.util.SortedSet;
import java.util.TreeSet;
import java.util.logging.Logger;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipInputStream;
public class ZipUtil {  
    Logger logger = Logger.getLogger(ZipUtil.class.getSimpleName());  
 
    /** Constants for mode listing or mode extracting. */ 
    public static final int LIST = 0, EXTRACT = 1;  
 
    /** Whether we are extracting or just printing TOC */ 
    protected int mode = LIST;  
 
    /** The ZipFile that is used to read an archive */ 
    protected ZipFile zippy;  
 
    /** The buffer for reading/writing the ZipFile data */ 
    protected byte[] b;  
 
    private String unzipFileTargetLocation;  
 
    public ZipUtil() {  
        b = new byte[8092];  
    }  
 
    /** Set the Mode (list, extract). */ 
    public void setMode(int m) {  
        if (m == LIST || m == EXTRACT)  
            mode = m;  
    }  
 
    /** Cache of paths we've mkdir()ed. */ 
    protected SortedSet dirsMade;  
 
    /** 
     * For a given Zip file, process each entry.&nb


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