Java开发网 - 帮忙检查一下我自己写的这个程序!!

Topic: 帮忙检查一下我自己写的这个程序!!

1.帮忙检查一下我自己写的这个程序!!

Posted by: wwhui
Posted on: 2006-09-18 21:42

我自己写了一个方法用于动态接收数字.
编译没有错误,但是运行不了.请帮忙看一下.不声感激!!
  //method;
public static int transform(int j)throws Exception
  {ByteArrayOutputStream bb=new ByteArrayOutputStream();
    while(bb.size()!=j)
     bb.write(System.in.read());
     int p=Integer.parseInt(bb.toString());
     return p;
  }
完整程序如下:
import java.io.*;
import java.util.*;
public class tomorrowdate
{public static void main(String args[])throws Exception
  {int m=0,n=0,k=0;
    System.out.println("输入年(4)：");
     m=transform(4);
    System.out.println("输入月(2)：");
        n=transform(2);
    System.out.println("输入日(2)：");
        k=transform(2);
System.out.println(m);
System.out.println(n);
System.out.println(k);
  }

  //
  public static int transform(int j)throws Exception
  {ByteArrayOutputStream bb=new ByteArrayOutputStream();
    while(bb.size()!=j)
     bb.write(System.in.read());
     int p=Integer.parseInt(bb.toString());
     return p;
  }

  //
}

2.Re:帮忙检查一下我自己写的这个程序!! [Re: wwhui]	Copy to clipboard
Posted by: Novo Posted on: 2006-09-19 09:39 wwhui wrote: 编译没有错误,但是运行不了. 编译能通过只能证明语法没有错误.但并不代表逻辑上没有错误.这是不相干两回事.

3.Re:帮忙检查一下我自己写的这个程序!! [Re: wwhui]	Copy to clipboard
Posted by: lisliefor Posted on: 2006-09-19 11:15 Your program didn't run as same as you think ! when you input year and press "Enter" , it would do numberformate from string to int , at that moment , your month and day were "" , so it throw NumberFormateException . I try to do it : （缩略图，点击图片链接看原图）

4.Re:帮忙检查一下我自己写的这个程序!! [Re: wwhui]	Copy to clipboard
Posted by: JiafanZhou Posted on: 2006-09-19 19:21 代码里面请不要加中文阿。。感觉好怪。嘉帆