输出输入——2

package iolianxi;
import java.io.*;
public class test2 {

	public static void main(String[] args) {
		// 读取text内容
		File f=new File("d:/text.txt");
		try
		{
		FileReader fr=new FileReader(f);
		
		char[]c=new char[1024];
		String s="";
		int i=0;
		while((i=fr.read(c))>0)
		{
			String s1=new String(c,0,i);
			s+=s1;
		}
		System.out.println("text中的文件内容："+s);
		fr.close();
		//新建并把内容输入iodemo.txt
		File f1=new File("d:/iodemo.txt");
		
		f1.createNewFile();
		FileWriter fw=new FileWriter(f1);
		fw.write(s);
		
		fw.close();
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
		
		//新建并输入iodemo.txt
	

	}

}