package cn.edu.hnnu.lanqiao.nineteen;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.io.IOException;
import java.util.Random;
import java.util.Scanner;
public class Exercise19_1 {
public static void main(String[] args) throws IOException {
// TODO Auto-generated method stub
// 檔案對象建立
File f = new File("Exercise19_1");
if(f.exists()==false){
f.createNewFile();
}
//字元流
FileWriter fw = new FileWriter(f, true); //避免覆寫
PrintWriter pw = new PrintWriter(fw);
Random rd = new Random();
for (int i = 0; i < 100; i++)
pw.append(rd.nextInt() + " ");
//重新整理和關閉流
fw.flush(); //位置要注意 要在pw關閉前重新整理
pw.flush();
fw.close();
pw.close();
}
}