Insert object into string-CodePudding

I am new to coding in C# and ran into a problem that looks simple, but I just can't seem to find an answer anywhere

I wanted to create a readonly struct that represents time in 24-hour format, so it has a method that is supposed to return a string of time (for example: "08:45" if 8 and 45 were passed respectively or "03:40" if 25 hours and 160 minutes were passed)

The problem is in the method, how do I return a string with values from the object inserted into it? I imagined something like return "0{stringtimeobj.hours}:0{stringtimeobj.minutes} but I can't really figure out how to format a string so that it has values from an object in it. Please help out!

using System;

namespace TimeStruct
{
    public readonly struct Time
{
        private readonly int hours2;
        private readonly int minutes2;

        public Time(int minutes)
            : this()
        {
            this.minutes2 = minutes;
        }

        public Time(int hours, int minutes)
        {
            this.hours2 = hours;
            this.minutes2 = minutes;
            }

        public int Hours
        {
            get
            {
                if (this.hours2 < 24)
                {
                    return this.minutes2;
                }
                else if (this.hours2 == 24)
                {
                    return 0;
                }
                else
                {
                    double overflowtohours = ((Math.Truncate((double)this.minutes2 / 60)   1) * 60) - 60;
                    return Convert.ToInt32(this.hours2 - ((Math.Truncate((double)(Convert.ToInt32(overflowtohours / 60)   this.hours2) / 24)   1) * 24) - 24);
                }
            }
        }

        public int Minutes
        {
            get
            {
                if (this.minutes2 < 60)
                {
                    return this.minutes2;
                }
                else if (this.minutes2 == 60)
                {
                    return 0;
                }
                else
                {
                    double overflowtohours = ((Math.Truncate((double)this.minutes2 / 60)   1) * 60) - 60;
                    return Convert.ToInt32(this.minutes2 - overflowtohours); 
                }
            }
        }

        public string ToString(int hours3, int minutes3)
        {
            Time stringtimeobj = new Time(hours3, minutes3);
            return /* string "00:00" with hour and minute values from object stringtimeobj inserted */
        }
    }
}

CodePudding user response：

You can use built-in DateTime.ToString() with custom format. In your case it would look like:

int hour = 2;
int minute = 1;

DateTime time = new DateTime(2000, 1, 1, hour, minute, 0);

Console.WriteLine(time.ToString("HH:mm")); // 02:01

CodePudding user response：

We need to do some checking. If "stringtimeobj.hours" is greater than 9, which is 10 to 24, then "{stringtimeobj.hours}" can be used. Also, if "stringTimeobj.minutes" is greater than 9, that is, 10 to 60, then "{stringtimeobj.minutes}" can be used. Something like that. I'm cute, too. I hope it helps.thank you