如何在java中實現對zip和rar檔案的解壓

java中有zip包，可以使用

public void getZipFiles(String zipFile， String destFolder) throws IOException { BufferedOutputStream dest = null ZipInputStream zis = new ZipInputStream( new BufferedInputStream( new FileInputStream(zipFile))) ZipEntry entry while (( entry = extEntry() ) != null) { tln( "Extracting: " + ame() ) int count byte data[] = new byte[BUFFER] if (rectory()) { new File( destFolder + "/" + ame() )rs() continue } else { int di = ame()IndexOf( '/' ) if (di != -1) { new File( destFolder + "/" + ame() tring( 0， di ) )rs() } } FileOutputStream fos = new FileOutputStream( destFolder + "/" + ame() ) dest = new BufferedOutputStream( fos ) while (( count = ( data ) ) != -1) e( data， 0， count ) h() e() }}

rar的只能用第三方api，比如junrar