I want the user to input hours and minutes for a Local.Time from 00 to 23 and from 00 to 59, I scanned this as an int. It works but for values from 00 to 09 the int ignores the 0 and places then as a 0,1,2…9 instead of 00,01,02,03…09; this breaks the Local.Time since, for example "10:3"; is not a valid format for time.
I have read I can format this as a String, but I don’t think that helps me since I need an int value to build the LocalTime and subsequent opperations with it.
There is a way of formatting this while kepping the variable as an int??
Can I code this differently to bypass this??
Am I wrong about how these classes work??
I am pretty new to these concepts
Here is the code I am using
int hours;
int minutes;
System.out.println("Input a number for the hours (00-23): ");
hours = scan.nextInt();
System.out.println("Input a number for the minutes (00-59): ");
minutes = scan.nextInt();
LocalTime result = LocalTime.parse(hours + ":" + minutes);
I tried using the NumberFormat class but it returns an error when trying to declare its variables (something like it is an abstract variable and cannot be instanced)
I also tried using the String format but I don’t really know what to do with that string after that, it asks me for a int and not a string to build this method
>Solution :
First: an int doesn’t differentiate between 09 and 9. They are the same value: the number nine.
Next: if you already have numbers, then going back to a string to produce a date is an anti-pattern: you are losing type checking by this. So instead of using LocalTime.parse and constructing the input from int values, you should simply use LocalTime.of(hours, minutes):
LocalTime result = LocalTime.of(hours, minutes);