Java: empty char without space

Question

I am making a program that puts a zero before a day or month if its < 10. I work with the ternary operator and it works well if my dates are < 10.

11-02-1999 is good

But if its higher than zero it gives

11- 12-1999

I dont want that whitespace. How do i remove it. This is my code

nuldag = (dag < 10 ? '0' : '\0');
nulmonth = (month < 10 ? '0' : '\0');
System.out.println("Date is:  " +nulday+day+"-"+nulmonth+month+"-"+year);

You have nuldag and dag, but you mean nulday and day. — mbomb007
– mbomb007, Commented Oct 6, 2015 at 21:16
You used nulday later though, so you need to rename them to be the same. — mbomb007
– mbomb007, Commented Oct 6, 2015 at 21:22

wero · Accepted Answer · 2015-10-06 19:55:56Z

5

You can't do this with a char. Use a String instead:

 String nuldag = (dag < 10 ? "0" : "");
 String nulmonth = (month < 10 ? "0" : "");
 System.out.println("Date is:  " + nuldag + day  + "-" + nulmonth + month + "-" + year);

EDIT:
I add the suggestion of Peter Lawrey that such formatting tasks are better solved using String formatting, e.g.

System.out.printf("Date is %2d-%2d-%d%n", day, month, year);

edited Oct 6, 2015 at 19:55

answered Oct 6, 2015 at 19:49

wero

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1 Comment

Peter Lawrey Over a year ago

This is the answer to the question but I would add that a better solution would be to use a format System.out.printf("Date is %2d-%2d-%d%n", day, month, year); +1

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