如何在Java中将双数字分成两个十进制数？

问题描述：

尝试按点将两个数字分成两个小数部分。像这样：1.9分为1分和9分; 0.16分为0和16;

Trying to split a double number into two decimal parts by dot. Like this: 1.9 into 1 and 9; 0.16 into 0 and 16;

这是我的工作，但似乎有点多余，最好的方法是什么？

Here's what I do, but seems a little redundant, what's the best way to do this?

原始数字将始终为Just 0.x或1.x或0.xx或1.xx且xx> 10

The origin number will always be like Just 0.x or 1.x or 0.xx or 1.xx and xx > 10

    double d = 1.9;
    int a, b;
    String dString = Double.toString(d);
    String aString = dString.substring(0, 1);

    String bString = dString.substring(2);
    a = Integer.parseInt(aString);
    b = Integer.parseInt(bString);

我这样做的方式似乎使用了很多String转换，我认为这不是很有效。

My way of doing this seems using to much String conversion,which I don't think is very efficient.

答

你也可以尝试这种方式

    double val=1.9;
    String[] arr=String.valueOf(val).split("\\.");
    int[] intArr=new int[2];
    intArr[0]=Integer.parseInt(arr[0]); // 1
    intArr[1]=Integer.parseInt(arr[1]); // 9

如何在Java中将双数字分成两个十进制数？

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