jlab1102c1.java

计算机系学习java的专用ppt

import java.io.*;
public class JLab1102C1{
   public static void main(String[] args)throws IOException{
      File output=new File("q2.dat");
      RandomAccessFile out=new RandomAccessFile(output,"rw");
      double c;
      int i;
      for(i=0;i<20;i++){
          c=Math.random();
          out.writeDouble(c);
          }
      out.close();
      }
    }