iodemo.java~1~

java 使用FileStream 复制文件

package day7;
import java.io.*;
public class IODemo {
    public static void main(String[] args) {
        File f=new File("abc.txt");
        System.out.println(
                "path:"+f.getAbsolutePath());
        FileWriter fw=null;
        try {
            fw=new FileWriter(f);
            fw.write("Welcome");
            fw.close();
        } catch (Exception ex) {
            System.out.println("ex :"+ex.getMessage());
        }

//        if(f.exists())
//        {
//            System.out.println("file not found!");
//            return;
//        }

    }
}