Java/com/study/demo5/FileCopy.java

package com.study.demo5;

import java.io.*;

public class FileCopy {
  public void copy(String source, String target) {
    try (FileInputStream fis = new FileInputStream(source);
        FileOutputStream fos = new FileOutputStream(target)) {
      byte[] buffer = new byte[1024];
      int bytesRead;
      while ((bytesRead = fis.read(buffer)) != -1) {
        fos.write(buffer, 0, bytesRead);
      }
    } catch (FileNotFoundException e) {
      System.err.println("源文件未找到: " + e.getMessage());
    } catch (IOException e) {
      System.err.println("文件复制失败: " + e.getMessage());
    }
  }
}