语源科技BlogJava-FoxInSkyhttp://www.blogjava.net/foxinsky/编程的孩子zh-cnWed, 06 May 2026 03:03:45 GMTWed, 06 May 2026 03:03:45 GMT60我无法解释的问题，请您一并来解释http://www.blogjava.net/foxinsky/archive/2009/01/14/251243.htmlfoxinskyfoxinskyWed, 14 Jan 2009 04:34:00 GMThttp://www.blogjava.net/foxinsky/archive/2009/01/14/251243.htmlhttp://www.blogjava.net/foxinsky/comments/251243.htmlhttp://www.blogjava.net/foxinsky/archive/2009/01/14/251243.html#Feedback10http://www.blogjava.net/foxinsky/comments/commentRss/251243.htmlhttp://www.blogjava.net/foxinsky/services/trackbacks/251243.html  阅读全文

foxinsky 2009-01-14 12:34 发表评论
]]>IEEE754标准规定的五种四舍五入方法http://www.blogjava.net/foxinsky/archive/2008/11/17/240987.htmlfoxinskyfoxinskyMon, 17 Nov 2008 08:50:00 GMThttp://www.blogjava.net/foxinsky/archive/2008/11/17/240987.htmlhttp://www.blogjava.net/foxinsky/comments/240987.htmlhttp://www.blogjava.net/foxinsky/archive/2008/11/17/240987.html#Feedback2http://www.blogjava.net/foxinsky/comments/commentRss/240987.htmlhttp://www.blogjava.net/foxinsky/services/trackbacks/240987.htmldouble dTest=82.545d;
DecimalFormat format=new DecimalFormat("0.00");
System.out.println(format.format(dTest));

你觉得会输出什么？82.55?还是82.54？  阅读全文

foxinsky 2008-11-17 16:50 发表评论
]]>数据精度问题http://www.blogjava.net/foxinsky/archive/2008/09/04/226913.htmlfoxinskyfoxinskyThu, 04 Sep 2008 05:55:00 GMThttp://www.blogjava.net/foxinsky/archive/2008/09/04/226913.htmlhttp://www.blogjava.net/foxinsky/comments/226913.htmlhttp://www.blogjava.net/foxinsky/archive/2008/09/04/226913.html#Feedback1http://www.blogjava.net/foxinsky/comments/commentRss/226913.htmlhttp://www.blogjava.net/foxinsky/services/trackbacks/226913.html  NumberFormat numberFormat=NumberFormat.getNumberInstance();
  numberFormat.setMaximumFractionDigits(2);
  numberFormat.setMinimumFractionDigits(2);
  float f=5.535f;
  double d=5.535;
  System.out.println(numberFormat.format(f));  //输出值为？
  System.out.println(numberFormat.format(d));//输出值为？

看一下输出1 为5.53
而输出2 为5.54

有哪位兄台给我讲一下原因呢？

foxinsky 2008-09-04 13:55 发表评论
]]>开博第一篇http://www.blogjava.net/foxinsky/archive/2008/06/26/210908.htmlfoxinskyfoxinskyThu, 26 Jun 2008 09:35:00 GMThttp://www.blogjava.net/foxinsky/archive/2008/06/26/210908.htmlhttp://www.blogjava.net/foxinsky/comments/210908.htmlhttp://www.blogjava.net/foxinsky/archive/2008/06/26/210908.html#Feedback0http://www.blogjava.net/foxinsky/comments/commentRss/210908.htmlhttp://www.blogjava.net/foxinsky/services/trackbacks/210908.html

foxinsky 2008-06-26 17:35 发表评论
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