Home Java Beginners Rounding off in Java - Round two decimal places

Rounding off in Java - Round two decimal places
Posted on: March 18, 2008 at 12:00 AM

In this section, you will learn about how to round the figure up to two decimal places in java.

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;

  }

}

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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