mystream.java

这是一个简单的IO流读取字符的代码

package com.hmy.fan;

import java.io.FileReader;
import java.io.FileWriter;
import java.io.*;

public class MyStream{
	int c=0;
	String ru=null;
	String chu=null;
	public MyStream(String ru,String chu){
		setRu(ru);
		setChu(chu);
		}
	public void setStream() throws Exception{
		File file1=new File(getRu());
		File file2=new File(getChu());
        System.out.println("成功2"+file1);
		FileReader reader=new FileReader(file1);
		System.out.println("成功3");
		FileWriter writer=new FileWriter(file2);
		
		try{
			while((c=reader.read())!=-1){
				writer.write(c);
				}
			}catch(Exception e){
				e.printStackTrace();
				}
		finally{
			try{
				if(reader!=null){
					reader.close();
					}
				}catch(Exception e){
					e.printStackTrace();
					}
			try{
				if(writer!=null){
					writer.close();
					}
				}catch(Exception e){
					e.printStackTrace();
					}
			}
		}
	public void setRu(String ru){
		this.ru=ru;
		}
	public String getRu(){
		return ru;
		}
	public void setChu(String chu){
		this.chu=chu;
		}
	public String getChu(){
		return chu;
		}
	public static void main(String[] args){
		String du="image/in.txt";
		String xie="ins.txt";
		MyStream my=new MyStream(du,xie);
		try{
			
			my.setStream();
			System.out.println("成功");
			}catch(Exception e){
				e.getMessage();
				}
		}
	}