摘要： HDU 2093:System.out.format("%-10s %2d %4d\n", p[i].name, p[i].a, p[i].b); //错误System.out.println(String.format("%-10s %2d %4d", p[i].name, p[i].a, p[i].b));// 正确http://www.cnblogs.com/webcyz/archive/2011/12/18/2291734.htmlhttp://blog.csdn.net/touch_2011/article/details/6860574例子： 阅读全文

摘要： http://oracle-9i.iteye.com/blog/1103316double四舍五入得到精确结果：double a = -12.4658; double b = -12.5658; System.out.println((int) Math.floor(a)); System.out.println((int) Math.ceil(b)); System.out.println(new BigDecimal(a).setScale(0, BigDecimal.ROUND_HALF_UP)); System.out.println(new BigDecimal(b).... 阅读全文