Java布尔if语句搞砸了

Question

我有这个if语句,当我用JOptionPane.showMessageDialog检查时(如代码顶部所示)返回false,但块仍然执行.我看不出我应该做些什么不同.

变量:

• c = GregorianCalendar
• s =字符串
• h = HashMap-array - 字符串,日期
• oldGoods1,2和3 = HashMaps - String,Date

码:

JOptionPane.showMessageDialog(null, c.after((Date) h[counter].get(s)));
if(c.after((Date) h[counter].get(s))); //this line
{
  Calendar today = Calendar.getInstance();
  if(today.after((Date) h[counter].get(s)))
  {
    GoodsList.removeDate(s, (Date) h[counter].get(s));
  }
  if(!oldGoods1.containsKey(s)) 
  {
    oldGoods1.put(s, (Date) h[counter].get(s));
  }
  else if(!oldGoods2.containsKey(s))
  {
    oldGoods2.put(s, (Date) h[counter].get(s));
  }
  else if(!oldGoods3.containsKey(s))
  {
    oldGoods3.put(s, (Date) h[counter].get(s));
  }
}

先谢谢Highace2

Answer 1

if(c.after((Date) h[counter].get(s)));  // The `;` is the culprit. Remove it.

在结尾处有一个分号,它只if statement在if statement那里终止,并且无论条件评估的是什么,总是执行下面的块,它只是一个本地块.