exam103.java

java例子

import java.io.*;
import java.io.FileOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
public class Exam103
{public static void main(String args[])throws IOException{
 System.out.println("向该文件写入内容:");
 byte[] out=new byte[100];
 int bytes;
 FileOutputStream Fout=new FileOutputStream(args[0]);
 try{bytes=System.in.read(out,0,100);
 Fout.write(out);
}catch(IOException e)
{System.out.println(e.toString());} 
Fout.close();
int c;
System.out.println("该文件内容为:");
FileInputStream Fin=new FileInputStream(args[0]);
while((c=Fin.read())!=-1)
System.out.print((char)c);
Fin.close();
}}