rounding numbers up and down

In dealing with some of the data, we want to be able to use the "rounding" method, but C # uses the "four six into 50% pairs" method, such as the following example, is the "four six into 50% pairs" results obtained:Double D1 = Math.Round (1.25, 1);//

The simple floating-point number types in Java float and double are not capable of operation. It's not just Java, it's also a problem in many other programming languages.What will we see if we compile and run the following program?public class Test {

When processing some data, we hope to use the "Rounding" method, but C # uses the "four homes, six homes, five into two" method, as shown in the following example, the result is obtained using "four homes, six homes, and five into two: Code

When processing some data, we hope to use the "Rounding" method, but C # uses the "four homes, six homes, five into two" method, as shown in the following example, the result is obtained using "four homes, six homes, and five into two: double d1 =

The C language has the following rounding methods:1, the direct assignment to the integer variable. Such as:int i = 2.5; or i = (int) 2.5;This method uses the rounding up of the decimal part 2, the integer division operator in C + +"/"has a

BigDecimal Rounding Mode Description:Rounding mode is inside Java.math.RoundingMode:Roundingmode.ceiling: Rounding mode rounded to the positive infinity direction. If the result is positive, the rounding behavior is similar to Roundingmode.up, and

Hi all,After I investigated CCR below, I found an rounding issue. The issue is, we can get different resultBetween Linux and Windows platform when we do the decimal rounding with string format or printfunction.Refer to the screenshots first.Pic1

      When processing some data, we hope to use the "Rounding" method, but C # uses the "four homes, six homes, five into two" method, as shown in the following example, the result is obtained using "four homes, six homes, and five into two: double

When processing some data, we hope to use the "Rounding" method, but C # uses the "four homes, six homes, five into two" method, as shown in the following example, the result is obtained using "four homes, six homes, and five into two:   Double d1 =

Java: Rounding the double value to five, retaining the two decimal places, double rounding to five1. Functions The double value in the program is accurate to the two digits after the decimal point. It can be rounded up or truncated. For example, if