Java十進制到時間轉換

Question

如何在Java中將小數轉換爲時間。

實施例：

Double takttime = 1.08; //Which is 1 Minutes 4 Seconds. 

結果由時，分，秒分開。

Answer 1

試試這個：

double takttime = 1.08; 

int t = (int) (100 * takttime * 60); 

int hour = t/3600; 
t %= 3600; 
int min = t/60; 
t %= 60; 
int sec = t; 

或...也許：

double takttime = 1.08; 

int t = (int) (100 * takttime); 

int min = t/100; 
int sec = 60 * (t%100) 

取決於你所需要究竟是什麼。

Answer 2

假設takeTime是以分鐘爲單位的時間。然後：

double taktTime = 1.8; 
long timeInMilliSeconds = (long) Math.floor(taktTime * 60 * 1000); 
Date date = new Date(timeInMilliSeconds); 
SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss"); 
sdf.setTimeZone(TimeZone.getTimeZone("GMT")); 
System.out.println(sdf.format(date));