如何在Java中比较日期？

if(todayDate.after(historyDate) && todayDate.before(futureDate)) {
    // In between
}

if(!historyDate.after(todayDate) && !futureDate.before(todayDate)) {
    /* historyDate 

  Date today = new Date();                   
  Date myDate = new Date(today.getYear(),today.getMonth()-1,today.getDay());
  System.out.println("My Date is"+myDate);    
  System.out.println("Today Date is"+today);
  if (today.compareTo(myDate)0)
      System.out.println("Today Date is Greater than my date"); 
  else
      System.out.println("Both Dates are equal");