java复制重命名_java 流 复制，重命名，删除目录

package流;importjava.io.File;importjava.io.FileInputStream;importjava.io.FileNotFoundException;importjava.io.FileOutputStream;importjava.io.IOException;importjava.io.InputStream;importjava.io.OutputStream;public class流 {/***@paramargs*/

public static voidmain(String[] args) {//TODO Auto-generated method stub

delDir("d://MyDrivers");

}public static voidcopyFile(String src,String dest){try{

InputStream inputStream=newFileInputStream(src);

OutputStream outputStream=newFileOutputStream(dest);

File file=newFile(dest);if(!file.exists())try{

file.createNewFile();

}catch(IOException e1) {//TODO Auto-generated catch block

e1.printStackTrace();

}intch;try{while((ch=inputStream.read())!=-1)

{

outputStream.write(ch);

}

}catch(IOException e) {//TODO Auto-generated catch block

e.printStackTrace();

}

}catch(FileNotFoundException e) {//TODO Auto-generated catch block

e.printStackTrace();

}

}public static voidrenameFile(String path,String oldname,String newname){if(!oldname.equals(newname)){

File oldFile=new File(path+"/"+oldname);

File newFile=new File(path+"/"+newname);if(newFile.exists())

{

System.out.println("该文件已经存在");

}else{

oldFile.renameTo(newFile);

}

}

}public static voiddelDir(String path){

File dir=newFile(path);if(dir.exists()){

File[] tmp=dir.listFiles();for(int i=0; i

{if(tmp[i].isDirectory())

{

delDir(path+"/"+tmp[i].getName());

}else{

tmp[i].delete();

}

}

}

dir.delete();

}

}