Solved Double - Limit amount of digits after decimal?

When a player kills someone, I add 1 integer point to their kills, vice versa with deaths.

I tried to devide the kills by deaths to get the players KD (Kills/Deaths) ratio.

It works, but if the kills doesn't devide well with the deaths, many decimal numbers may be used.

Here is an example:


How could I only make two decimal values appear removing the unnecessary digits? For example, instead of 21.35957392729, something like 21.36, rounding the value over.

Here is the code I have used:

Code:java

FileConfiguration kills = KitsMain.statskills.getStatsKillsData();
FileConfiguration deaths = KitsMain.statsdeaths.getStatsDeathsData();
double kd = kills.getDouble(target.getName()) / deaths.getDouble(target.getName());
p.sendMessage(ChatColor.RED + "KD: " + ChatColor.WHITE + kd);

Thanks.

 

elementalgodz11
try using Math's static method Math.round(double a)

 

Henzz He said he wanted 2 decimal numbers.

 

Code:java

doubleRoundTo2Decimals(double val){
DecimalFormat df2 =newDecimalFormat("###.##");
return Double.valueOf(df2.format(val));
}

 

Mattigins
Thanks, that did the trick

 

elementalgodz11 and to make sure it works on all server you should do df2.setLocale(Locale.US), otherwise you are going to get 4,5 for example (I ran into that once).

 

@weter318 I don't mind if it rounds it to 1 decimal place, just a maximum of 2.

 

elementalgodz11 That's not what I meant , I meant the comma, Double.valueOf() can't parse ,'s

 

I believe in europe they use commas as decimals.

 

Mattigins Yup

 

@

werter318
Okay but there is no setLocal or Locale method, did you mean setCurrency?