使用IO流進行檔案的拷貝
阿新 • • 發佈:2019-01-06
直接上程式碼:
package com.yyj.IO; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; public class IOTest { public static void main(String[] args) { String filePath = "E:\\IO.txt"; File file = new File(filePath); if(file.exists()){ System.out.println("檔案存在!"); } FileInputStream is = null; FileOutputStream os = null; int temp =0; byte[] bytes = new byte[1024]; try { is = new FileInputStream(filePath); os = new FileOutputStream("E:\\IOs.txt"); while((temp = is.read(bytes))!=-1){ os.write(bytes, 0, temp); } } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }finally{ try { is.close(); } catch (IOException e) { e.printStackTrace(); } try { os.close(); } catch (IOException e) { e.printStackTrace(); } } } }