how to add Hours and Minutes in to the total min which is contain in vector in java

Question

I have a Vectors which is containing Hours into this float type 00.00 so how to convert it into the HH.MM type and how to get Sum of all Elements of of that vector Can i have suggestion.

Answer 1

try

    float ti = 2.56f;   // equals 2 hours and 56 minutes

    int hr = (int)(ti * 100) / 100;
    int min = (int)(ti * 100) % 100;
    System.out.println(hr);
    System.out.println(min);

    Calendar cal = Calendar.getInstance();
    cal.set(Calendar.HOUR, hr);
    cal.set(Calendar.MINUTE, min);
    System.out.println(cal.get(Calendar.HOUR) + ":" + cal.get(Calendar.MINUTE));

Update

If you have a collection of this objects, then you can iterate through them and add up to minutes. You can also add up the hours. Then ....

If you have 156 minutes,

int minutes = 156;
int hours = minutes  / 60;
min = minutes % 60;

you can these hours to your previous summed hours, and there you have it, total hours and minutes.