Rounding off in Java - Round two decimal places

In this section, you will learn about how to round the
figure up to two decimal places in java.
Round: This is the process of rounding with
dollar amounts and provides the result in more than two decimal places after
division. There are following methods to used in rounding the data:
Methods
Data
Rounded Data
Round Half
Up
45.558
45.56
Round Half Down
45.555
45.55
Round
Up
45.558
45.56
Round Down
45.558
45.55
Description of program:
The following program round two decimal places of the
given number. It means numbers are rounded into the above methods and shows the
number in two figures after decimal point. Here, apply the Round() method for rounding
the given number and print the following output.
Here is the code of program:
public class RoundTwoDecimalPlaces{
public static void main(String[] args) {
float num = 2.954165f;
float round = Round(num,2);
System.out.println("Rounded data: " + round);
}
public static float Round(float Rval, int Rpl) {
float p = (float)Math.pow(10,Rpl);
Rval = Rval * p;
float tmp = Math.round(Rval);
return (float)tmp/p;
}
}
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Download this example.
Output of program:
C:\vinod\Math_package>javac RoundTwoDecimalPlaces.java
C:\vinod\Math_package>java RoundTwoDecimalPlaces
Rounded data: 2.95 |

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