这段代码是一个Java程序， 其中包含了文件操作的方法，如创建文件、复制文件夹、移动文件、删除文件和文件夹等。

1. 创建文件 java public void newFile { File myFilePath = new File; if ) { myFilePath.createNewFile; } PrintWriter myFile = new PrintWriter; myFile.println; myFile.close; }

   

2. 复制文件夹 java public void copyFolder { File oldfile = new File; File newfile = new File; if ) { newfile.mkdirs; } if ) { String file = oldfile.list; for { File temp = new File; if ) { copyFile; } else { copyFolder; } } } }

3. 移动文件夹 java public void moveFolder { copyFolder; delFolder; }

4. 删除文件夹 java public void delFolder { delAllFile; File myDelFile = new File; myDelFile.delete; }

5. 删除文件夹内的全部文件 java public void delAllFile { File file = new File; if ) { return; } if ) { return; } String tempList = file.list; File temp = null; for { if ) { delAllFile; } else { temp = new File; temp.delete; } } }

6. 复制文件 java public void copyFile { try { int bytesum = 0; int byteread = 0; File oldfile = new File; if ) { InputStream inStream = new FileInputStream; FileOutputStream output = new FileOutputStream; byte buffer = new byte; while ) != -1) { bytesum += byteread; output.write; } inStream.close; output.close; } } catch { e.printStackTrace; } }

8. 打开文件选择器 java JFileChooser chooser = new JFileChooser; chooser.setFileSelectionMode; int r = chooser.showOpenDialog; if { File file = chooser.getSelectedFile; System.out.println); }

这玩意儿程序包含了hen许多文件操作的方法， Neng用来处理文件和文件夹的创建、复制、移动和删除等操作。