Java开发网 - 请教日期型数据运算

Topic: 请教日期型数据运算

1.请教日期型数据运算	Copy to clipboard
Posted by: zhangjiyh Posted on: 2004-12-06 16:29 我想运算求出当前日期和指定日期的相差天数还有指定日期加上一定天数后的新日期如何编写阿？请教……

2.Re:请教日期型数据运算 [Re: zhangjiyh]

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Posted by: littledeer1974
Posted on: 2004-12-06 16:37

e373. Getting the Current Date
    Calendar cal = new GregorianCalendar();
    
    // Get the components of the date
    int era = cal.get(Calendar.ERA);               // 0=BC, 1=AD
    int year = cal.get(Calendar.YEAR);             // 2002
    int month = cal.get(Calendar.MONTH);           // 0=Jan, 1=Feb, ...
    int day = cal.get(Calendar.DAY_OF_MONTH);      // 1...
    int dayOfWeek = cal.get(Calendar.DAY_OF_WEEK); // 1=Sunday, 2=Monday, ...

http://javaalmanac.com/egs/java.util/GetCurDate.html

下边是生成你自己的Calendar的对象,然后应该做简单的运算就可以实现你的要求了吧,我想

Calendar xmas = new GregorianCalendar(1998, Calendar.DECEMBER, 25);
    Date date = xmas.getTime();

3.Re:请教日期型数据运算 [Re: zhangjiyh]	Copy to clipboard
Posted by: zhangjiyh Posted on: 2004-12-06 19:25 谢谢我会尝试的不过怎么感觉比C++麻烦了阿嘿嘿不知道有没有现成的日期运算函数的