java解压缩文件详解编程语言

** ex. java UnZip file.zip file1 to unzip file 1 from file.zip ** java UnZip file.zip to unzip file.zip import java.io.*; import java.util.*; import java.util.zip.*; import java.text.*; class UnZip { public static void main(String args[]) throws IOException { InputStream in = new BufferedInputStream(new FileInputStream(args[0])); ZipInputStream zin = new ZipInputStream(in); ZipEntry e; while((e=zin.getNextEntry())!= null) { if (args.length 1) { if (e.getName().equals(args[1])) { unzip(zin, args[1]); break; unzip(zin, e.getName()); zin.close(); public static void unzip(ZipInputStream zin, String s) throws IOException { System.out.println("unzipping " + s); FileOutputStream out = new FileOutputStream(s); byte [] b = new byte[512]; int len = 0; while ( (len=zin.read(b))!= -1 ) { out.write(b,0,len); out.close(); }

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