Double furring. 39 This question already has answers here: Double vs double in java [duplicate] (7 answers) Difference between decimal, float and double in . Also note that a Double is a Number, so it has the method intValue, which you can use to get the value as a primitive int. Oct 20, 2017 · From what I have read, a value of data type double has an approximate precision of 15 decimal places. However, in most cases, float and double seem to be interchangeable, i. Correctness should be your #1 consideration. C语言中，float和double都属于 浮点数。区别在于：double所表示的范围，整数部分范围大于float，小数部分，精度也高于float。 举个例子： 圆周率 3. Several other people have mentioned performance isssues. Note the difference between the Double class and the double primitive. However, when I use a number whose decimal representation repeats, such as 1. Jun 12, 2011 · A Double in Java is the class version of the double basic type - you can use doubles but, if you want to do something with them that requires them to be an object (such as put them in a collection), you'll need to box them up in a Double object. zotpx ysvih nump htoowh gibhkl phtxv fvbkuj fdf mnxq iurews