# How to avoid the round up from decimals?

**807598**Sep 15, 2006 9:00 PM

Hello, I'm trying to transform a given time in seconds to the format of Hours:minutes:seconds.milliseconds. My output is correct, only that I don't want to see decimals, but if I switch the decimals off I get an automatic round up which I dont want, let me show the code here:

public class Time

{

public static void main(String[] args)

{

double time = 4484.71; //total race time in seconds

double StoH = 0.000277777; //Convertion factor from Seconds to Hours

double HtoM = 60; //Convertion factor from Hours to Minutes

double MtoS = 60; //Convertion factor from Minutes to Seconds

double StoMS = 1000; //Convertion factor from Seconds to Milliseconds

double Hours = time * StoH; //gets the total time in hours

String extractMfromH = Double.toString(Hours); //transforms Hours to a string

String getMinutes = extractMfromH.substring(2,10); //gets the decimal part from the total time

double toMinutes = Double.parseDouble(getMinutes); //transforms the decimal part to a double

double Minutes = (toMinutes/100000000) * HtoM; //converts the remaining part to minutes

String extractSfromM = Double.toString(Minutes); //transforms Minutes to a string

String getSeconds = extractSfromM.substring(3,10); //gets the decimal part from the minutes

double toSeconds = Double.parseDouble(getSeconds); //transforms the decimal part to a double

double Seconds = (toSeconds/10000000) * MtoS; //converts the decimal part to seconds

String extractMSfromS = Double.toString(Seconds); //transforms Seconds to a string

String getMilliseconds = extractMSfromS.substring(3,10); //gets the decimal part from the seconds

double toMilliseconds = Double.parseDouble(getMilliseconds); //transforms the decimal part to a double

double Milliseconds = (toMilliseconds/10000000) * StoMS; //converts the decimal part to milliseconds

System.out.printf("%3.0fh " , Hours);

System.out.printf(" %2.1fm " , Minutes);

System.out.printf(" %2.1fs " , Seconds);

System.out.printf(" %3.1fms " , Milliseconds);

}

}

My output is this: 1h 14.7m 44.7s 697.4ms

I need to get rid of the decimals WITHOUT rounding up the numbers, how can I do that?

By the way, I also don't know why I'm getting a different time for the milliseconds, 697ms, the game shows 755ms, if someone wants to try to convert this 4484.71seconds to H:MM:SS.mss and gets 755ms instead of the 697ms that I'm getting, please tell me how you got it.

Thanks

public class Time

{

public static void main(String[] args)

{

double time = 4484.71; //total race time in seconds

double StoH = 0.000277777; //Convertion factor from Seconds to Hours

double HtoM = 60; //Convertion factor from Hours to Minutes

double MtoS = 60; //Convertion factor from Minutes to Seconds

double StoMS = 1000; //Convertion factor from Seconds to Milliseconds

double Hours = time * StoH; //gets the total time in hours

String extractMfromH = Double.toString(Hours); //transforms Hours to a string

String getMinutes = extractMfromH.substring(2,10); //gets the decimal part from the total time

double toMinutes = Double.parseDouble(getMinutes); //transforms the decimal part to a double

double Minutes = (toMinutes/100000000) * HtoM; //converts the remaining part to minutes

String extractSfromM = Double.toString(Minutes); //transforms Minutes to a string

String getSeconds = extractSfromM.substring(3,10); //gets the decimal part from the minutes

double toSeconds = Double.parseDouble(getSeconds); //transforms the decimal part to a double

double Seconds = (toSeconds/10000000) * MtoS; //converts the decimal part to seconds

String extractMSfromS = Double.toString(Seconds); //transforms Seconds to a string

String getMilliseconds = extractMSfromS.substring(3,10); //gets the decimal part from the seconds

double toMilliseconds = Double.parseDouble(getMilliseconds); //transforms the decimal part to a double

double Milliseconds = (toMilliseconds/10000000) * StoMS; //converts the decimal part to milliseconds

System.out.printf("%3.0fh " , Hours);

System.out.printf(" %2.1fm " , Minutes);

System.out.printf(" %2.1fs " , Seconds);

System.out.printf(" %3.1fms " , Milliseconds);

}

}

My output is this: 1h 14.7m 44.7s 697.4ms

I need to get rid of the decimals WITHOUT rounding up the numbers, how can I do that?

By the way, I also don't know why I'm getting a different time for the milliseconds, 697ms, the game shows 755ms, if someone wants to try to convert this 4484.71seconds to H:MM:SS.mss and gets 755ms instead of the 697ms that I'm getting, please tell me how you got it.

Thanks

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