移动文件有一种简单方法，不需要复制文件再删除文件。
package com.unir.test01;import java.io.File;import java.io.IOException;public class Test02 { public static void main(String[] args) throws IOException { //创建文件 File f=new File("d:\\developer\\6.txt"); f.renameTo(new File("E:\\英雄时刻"));//移动到e盘 f.delete();//删除 }}
使用FileInputStream类的read(byte[])方法和FileOutputStream类的write（byte[]）方法实现文件移动。
已知文件：d:\\developer\\56.txt
目标地址：e:\\英雄时刻\\56.txt
package com.unir.test01;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;public class Test01 { /* 已知文件：d:/developer/12345.txt 目标地址：e:/英雄时刻/12345.txt */ public static void main(String[] args) throws IOException { //创建文件 File f=new File("d:\\developer\\12345.txt"); //创建字符 String txt="nice."; byte[] b=txt.getBytes(); FileOutputStream fos=new FileOutputStream(f); fos.write(b); //创建输入流 FileInputStream input = new FileInputStream("d:/developer/12345.txt"); //创建输出流 FileOutputStream output = new FileOutputStream("e:/英雄时刻/12345.txt"); int len = 0; byte[] buf = new byte[1024]; if((len = input.read(buf)) > -1){ output.write(buf, 0 , len); } fos.close(); input.close(); output.close(); f.delete(); } }
使用BufferedInputStream类的read方法和BufferedOutputStream类的write方法实现文件移动。
已知文件：d:\\developer\\56.txt
目标地址：e:\\英雄时刻\\56.txt
package com.unir.test01;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStreamReader;public class Test04 { public static void main(String[] args) throws IOException { FileInputStream f=new FileInputStream("D:\\developer\\9.txt"); InputStreamReader i=new InputStreamReader(f,"utf-8"); FileOutputStream f1=new FileOutputStream("e:\\英雄时刻\\9.txt",true); BufferedOutputStream b=new BufferedOutputStream(f1); int len = 0; byte[] buf = new byte[1024]; if((len = i.read()) != -1){ b.write(buf, 0 , len); } b.close(); i.close(); File file=new File("D:\\developer\\9.txt"); file.delete(); }} 从键盘读入“Java IO流的分类”，并将这些文字写入文件d:\\developer\\9.txt，然后将该文件复制到e:\\英雄时刻\\9.txt
package com.unir.test01;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStreamReader;public class Test04 { public static void main(String[] args) throws IOException { FileInputStream f=new FileInputStream("D:\\developer\\9.txt"); InputStreamReader i=new InputStreamReader(f,"utf-8"); FileOutputStream f1=new FileOutputStream("e:\\英雄时刻\\9.txt",true); BufferedOutputStream b=new BufferedOutputStream(f1); int len = 0; byte[] buf = new byte[1024]; if((len = i.read()) != -1){ b.write(buf, 0 , len); } b.close(); i.close(); File file=new File("D:\\developer\\9.txt"); file.delete(); }}
中。
posted on 2018-11-13 20:04 阅读( ...) 评论( ...)