jlab1102c2.java

计算机系学习java的专用ppt

import java.io.*;
public class JLab1102C2{
  public static void main(String[] args)throws IOException{
     File input=new File("q2.dat");
    RandomAccessFile in=new RandomAccessFile(input,"rw");
    double doubles[]=new double[20];
    int i;
    double d=0;
     for(i=0;i<20;i++){
        doubles[i]=in.readDouble();
        if(doubles[i]>d)d=doubles[i];
        System.out.println(doubles[i]);
        }
    System.out.println("the biggest digit: "+d);   
         }
       }