在Android中将十进制舍入为1.00和0.10

Question

作为标题，如果数字为1.01,1.02,1.03,1.04，如何将十进制数舍入为1.00，如果数字为0.05,0.06,0.07,0.08,0.09，则将小数点数舍入为0.10

Answer 1

您可以尝试以下代码：

 private static void roundOff(double num) {
    double intPart = (int) num;
    double rondededOffNum = intPart+ Math.round((num- intPart)*10)/10.0;
    System.out.println(rondededOffNum);
}