public void copyFolder(File fin, File fout) throws Exception { fout.mkdir(); String[] children = fin.list(); if (children == null) { // Either dir does not exist or is not a directory } else { for(int p=0;p<children.length;p++){ File f = new File(fin+"/"+children[p]); File f1 = new File(fout+"/"+children[p]); if(f.isDirectory()) copyFolder(f,f1); else copyFile(f,f1); } } }