Re: How to set a character of a String?


On Oct 30, 2:34 pm, "Neroku" <n37...@xxxxxxxxx> wrote:
Hi, I would like to know how to set a character of an String object.
It's just like the opposite of charAt() method which returns the char
at a given position.

You could either get the prefix and suffix subsequences and put the
new char in the middle as such:

index i = 1;
String abc = "abc";
String adc = abc.substring(0, i) + "d" + abc.substring(i+1,
abc.length);

This is untested though and may throw IndexOutOfBounds if the index is
= length.

Or you could put this string in a StringBuffer and use its
setCharAt(int index, char ch) method.

index i = 1;
String abc = "abc";
StringBuffer abcBuffer = new StringBuffer(abc);
abcBuffer.setCharAt(i, 'd');
String adc = abcBuffer.toString();

There may be other ways to solve this, but these seemed like fairly
simple ways to do it, the second being simpler/safer it seems.

Scott

.

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