package com.xuzhiwen.io1; 
 
import java.io.FileOutputStream; 
import java.io.IOException; 
 
public class FileOutputStreamTest { 
    public static void main(String[] args) throws IOException { 
        System.out.println("please input :"); 
        byte b[] = new byte[1024];  
        int count = System.in.read(b);
 
        //如果不存在test.txt则会创建该文件，如果存在则覆盖 
        FileOutputStream out = new FileOutputStream("test.txt");   
        out.write(b, 0, count); 
        out.close(); 
        System.out.println("save success"); 
    } 
}