获取文件信息

“`
package sda;
import java.io.*;
import java.util.Scanner;
public class hklg {
static final String INPUT=”d:/student.txt”;//定义输入文件路径
static final String OUTPUT=”d:/stunew.txt”;//定义输出文件路径

public static void main(String[] args) throws FileNotFoundException {    // TODO Auto-generated method stub    int iResult;    String str;    RandomAccessFile rdin=new RandomAccessFile(INPUT,"rw");//创建具有读写功能的RandomAccessFile对象rdin    FileInputStream fisIn=new FileInputStream(INPUT);//创建文件读入流对象fisIn    FileOutputStream fosOut=new FileOutputStream(OUTPUT);//创建文件写出流对象fosOut    try{        System.out.println("添加文件内容:");        Scanner sc=new Scanner(System.in);        str=sc.next();//从键盘输入信息        rdin.writeBytes(str);//将读入的字符串信息写入RandomAccessFile对象rdin        System.out.println("开始复制文件"+INPUT);        do{                          //实现复制功能            iResult=fisIn.read();            if(iResult!=-1){                fosOut.write(iResult);                System.out.println("...\n");            }        }while(iResult!=-1);        System.out.println(INPUT+"已复制到"+OUTPUT);        fisIn.close();//关闭fisIn对象        fosOut.close();//关闭fosOut对象    }    catch(IOException e){        e.printStackTrace();    }}

}
“`