import java.io.*;
class Book implements Serializable{
 String name;
 double price1, price2, price3;
 void show(){System.out.println(name + "\t" + price1 + "\t" + price2 + "\t" + price3 + "\n");}
   
}
class ObjectInOutEx{
 public static void main(String[] args) throws Exception{
        File file_Book1 = new File("score.txt");
  file_Book1.createNewFile();
  Book book1 = new Book();
  System.out.print("請輸入學號: ");
  InputStreamReader isr = new InputStreamReader(System.in);
  BufferedReader br = new BufferedReader(isr);
  book1.name = br.readLine();
  System.out.print("請輸入國文分數: ");
  isr = new InputStreamReader(System.in);
  br = new BufferedReader(isr);
  book1.price1 = Double.parseD ..

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