Change value of string within an array?

807603 Nov 25, 2007 6:50 PM

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Alright, so im trying to change "hello" to "Aello", there fore im changing the first letter of the string to an "A". This string is within an array:

This is what i have:

System.out.println ((char)split[1].charAt(0))='a');

but im getting an error

1. Re: Change value of string within an array?

807603 Nov 25, 2007 7:02 PM (in response to 807603)

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I think you mean:

split[1] = "a" + split[1].substring(1);
System.out.println(split[1]);

Strings are immutable which means they cant be changed. The only
thing you can do is create new Strings.

hello <- you cant make the 'h' an 'a'
a + ello <- but you can create a new string from 'a' and the rest of 'hello'

Edited by: TuringPest on Nov 25, 2007 10:01 PM
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2. Re: Change value of string within an array?

807603 Nov 25, 2007 7:16 PM (in response to 807603)

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you fascinate me, i still think that you're my teacher, although i feel like an idiot for not "actively" listening in class the day she said that. Thanks
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3. Re: Change value of string within an array?

807603 Nov 25, 2007 7:49 PM (in response to 807603)

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vertozia wrote:
you fascinate me, i still think that you're my teacher
well i have been in the market for a protege.
quick question, would you object to killing every person in a jedi temple?
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4. Re: Change value of string within an array?

807603 Nov 25, 2007 7:56 PM (in response to 807603)

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You would also have to adopt some unnecessary verbal affectations, like referring to children as "younglings".
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5. Re: Change value of string within an array?

807603 Nov 25, 2007 8:04 PM (in response to 807603)

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jedis? not sure lol, you convince me now. You arent, but you're good

quick question: split[2] = "a" + split[2].substring(5); that overirdes the rest of the string contents before 5th letter,why and how can i fix that
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6. Re: Change value of string within an array?

807603 Nov 25, 2007 8:16 PM (in response to 807603)

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vertozia wrote:
quick question: split[2] = "a" + split[2].substring(5); that overirdes the rest of the string contents before 5th letter,why and how can i fix that
why: it's doing what it's supposed to be doing. Please look at the api.

how to fix: all depends on what you are trying to do.
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7. Re: Change value of string within an array?

807603 Nov 25, 2007 8:28 PM (in response to 807603)

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I want this to happen:

Hello becomes Hella
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8. Re: Change value of string within an array?

807603 Nov 25, 2007 8:31 PM (in response to 807603)

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String hello = "hello"
String hella = hello.substring(0, hella.length()) + "a"
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9. Re: Change value of string within an array?

807603 Nov 25, 2007 8:32 PM (in response to 807603)

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String hello = "hello"
String hella = hello.substring(0, hella.length()) + "a"

possibly:
String hella = hello.substring(0, hella.length() - 1) + "a"
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10. Re: Change value of string within an array?

807603 Nov 25, 2007 9:29 PM (in response to 807603)

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paulcw wrote:
You would also have to adopt some unnecessary verbal affectations, like referring to children as "younglings".
Or, you know, not being able to act. ;)
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