Java 把文件内容复制到另一个文件中

import java.io.*; public class FileCopy { public static void main(String[] args) throws IOException { BufferedWriter out01 = new BufferedWriter(new FileWriter("srcFile")); //创建需要复制的文件 out01.write("You are my sunshine!!!!!!!!"); //并在文件中写入内容 out01.close(); //写完文件要关闭 InputStream inputStream = new FileInputStream("srcFile"); //把文件内容以流的形式读取 OutputStream outputStream = new FileOutputStream("copyfile"); //把内容以流的形式写到文件 byte[] bytes = new byte[1024]; int length; while ((length = inputStream.read(bytes))>0){ outputStream.write(bytes,0,length); } inputStream.close(); outputStream.close(); BufferedReader bufferedReader = new BufferedReader(new FileReader("copyfile")); //读取文件内容 String string; while ((string=bufferedReader.readLine()) != null){ System.out.println(string); } bufferedReader.close(); } }