How to concatenate specified number of characters to a string?

Hi all, I want to know how to concatenate specific number of characters to a string. I want my string to have exactly 35 characters. Suppose if the user enter 6 characters, rest of the 29 characters must be any special symbol, say a $.

Using for loop I am append the character by knowing the string length. But is there any efficient method?

Thank you all in advance.

Any ideas please.

What have you tried yourself? We don't hand out ready-made solutions or provide answers to what appear to be homework problems.

show us what you've done, and we can guide you.

Check out already existing methods of String.

fred rosenberger wrote:What have you tried yourself? We don't hand out ready-made solutions or provide answers to what appear to be homework problems.

show us what you've done, and we can guide you.

I asked for an idea dude. I am using this code right now

Instead of using String you could use StringBuilder and append() method. That's a bit more eficient.

Instead of using a loop and appending one char at the end, you could use 'coin method'. Having static final strings of length 20, 10, 5, 2 and 1 characters each. Append those strings, depending on the space you need to fill. You would probably still use a loop, it would just take less cycles.

Thanks Martin.

Concatenate your input string with a string 35 of your 'special characters'
return a substring of that, from 0-34

fred rosenberger wrote:Concatenate your input string with a string 35 of your 'special characters'
return a substring of that, from 0-34

Brilliant!

Thanks Fred.

Nice solution Fred

but I was wondering if String.format() will help in any way here ?