how to round to two decimal places in java

Question

final double YearDep= 0.15; //this is for each year a car loses of the value before

     double HybridDepreciation= HybridCarCost * Math.pow(1-YearDep,5);
     double HybridFuelCost=(Miles*5*GasCost)/HybridCarMPG;

     double GasPowerDepreciation=GasPowerCost * Math.pow(1-YearDep,5);
     double GasPowerFuelCost=(Miles *5*GasCost)/GasPowerMPG;

     double HybridTotalCost=HybridCarCost - HybridDepreciation + HybridFuelCost;
     double GasPowerTotalCost= GasPowerCost - GasPowerDepreciation + GasPowerFuelCost;

     System.out.printf("The total cost for the " + HybridName + " " + "is" +" $"+ HybridTotalCost);

     System.out.println();
     System.out.printf("The total cost for the " + GasPowerName + " "+ "is" + " $"+ GasPowerTotalCost);

score 1 · Answer 1 · answered Feb 05 '15 at 06:35

use DecimalFormat for this:

DecimalFormat df = new DecimalFormat(".00");
System.out.printf("The total cost for the " + HybridName + " " + "is" +" $"+ df.format(HybridTotalCost));
 System.out.println();
 System.out.printf("The total cost for the " + GasPowerName + " "+ "is" + " $"+ df.format(GasPowerTotalCost));

Or you can use

String.format("The total cost for the  %s is $%.2f", HybridName ,HybridTotalCost)

Ankur Singhal · Answer 2 · 2015-02-05T06:39:52.210

0

 double roundOff = Math.round(a*100)/100.0;

or

 DecimalFormat number = new DecimalFormat("#.00");
 number.format(new Double(2223.8990))

edited Feb 05 '15 at 06:39

answered Feb 05 '15 at 06:33

Ankur Singhal

26,012
16
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score 0 · Answer 3 · answered Feb 05 '15 at 06:34

0

DecimalFormat df = new DecimalFormat("#.00");

then

df.format(<your_value>);

Or

System.out.println( String.format( "%.2f", <your_value> ) );

answered Feb 05 '15 at 06:34

shikjohari

2,278
11
23

score 0 · Answer 4 · answered Feb 05 '15 at 06:34

You can use.

double roundOff1 = (double) Math.round(HybridTotalCost);
double roundOff2 = (double) Math.round(GasPowerTotalCost);

and you can also use.

DecimalFormat df = new DecimalFormat("###.##");
System.out.printf("The total cost for the " + HybridName + " " + "is" +" $"+ df.format(HybridTotalCost));
System.out.println();
System.out.printf("The total cost for the " + GasPowerName + " "+ "is" + " $"+df.format(GasPowerTotalCost));

how to round to two decimal places in java

4 Answers4