convert String into time format in java

Question

I am getting a String from front-end which I don't know exactly how it looks like - depending on the user. So it can be

23 or 234 or 23:34 or 00:32

In this case, the problem is 23 and 234 because I need a format like hhh:mm. How can I do this in a performant way to always format the string in this format [h]hh:mm

There can be 3 digit hours? Does 234 in the question mean 0234 (02:34 AM) — Jitin Kodian
– Jitin Kodian, Commented Feb 3, 2016 at 5:53
no, 234 hours means 234 hours and 0 minutes - so 234:00 [hhh:mm] — quma
– quma, Commented Feb 3, 2016 at 6:06

TomN · Accepted Answer · 2016-02-03 06:23:55Z

3

that's all I got from the question

    Scanner scn = new Scanner(System.in);
    String in = scn.nextLine();
    String time="";
    if(in.length()<=3)//23 or 234
    {
        time += in+":00";
    }
    else//23:34 or 00:32
    {
        time += in;
    }
    System.out.println(time);

answered Feb 3, 2016 at 6:23

TomN

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