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Oct 4th, 2004

Dividing a string

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I have a string that looks for example like this:

"aabbccddeeffgg"

I want to retreive the "ee" or the "cc" value from that string. How can I do that ? The tokenizer is not what I am looking for. I'm looking for the function that allows you to specify that you want the part of the string starting at letter 4 and ending at letter 7.

Please help ;')

Rentro

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Oct 4th, 2004

Re: Dividing a string

Look at the String documentation at:
http://java.sun.com/j2se/1.4.2/docs/api/index.html

specifically at the substring method

jerbo

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Oct 4th, 2004

Re: Dividing a string

you can also use the indexOf method of the string class ... see the String APIs for more reference.

nanosani

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Oct 4th, 2004

Re: Dividing a string

SUBSTRING

That was the word I was looking for. Thanks a lot guys .

Rentro

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Oct 4th, 2004

Re: Dividing a string

Thank I used to them ,but I'm from to VietNam so I read English verry bad
can you give me some example.
Thank verry much!

conmuacuoi

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Oct 5th, 2004

Re: Dividing a string

Rentro,

You it it right on. Java actually has a substring function.

Java Syntax (Toggle Plain Text)
String 	substring(int beginIndex, int endIndex)
          // Returns a new string that is a substring of this string.
String 	substring(int beginIndex, int endIndex)
          // Returns a new string that is a substring of this string.

See the jdocs for details.

Ed

Quote originally posted by Rentro ...

SUBSTRING That was the word I was looking for. Thanks a lot guys .

cosi

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Feb 25th, 2008

Re: Dividing a string

Click to Expand / Collapse Quote originally posted by Rentro ...

I have a string that looks for example like this:

"aabbccddeeffgg"

I want to retreive the "ee" or the "cc" value from that string. How can I do that ? The tokenizer is not what I am looking for. I'm looking for the function that allows you to specify that you want the part of the string starting at letter 4 and ending at letter 7.

Please help ;')

try using the following code it will surely work.

String s = "aabbccddeeffgg";
String s1 = s.substring(4,7);
System.out.println(s1);

it will give the output ccd.

Parsu7

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Feb 25th, 2008

Re: Dividing a string

String s ="aabbccddeeffgg";
String s1=s.substring(4,7);
System.out.println(s1);

output=ccd

Parsu7

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Feb 26th, 2008

Re: Dividing a string

but if it's "ee" you want as result:

int pos = firstString.indexOf("ee");
System.out.println(firstString.substring(pos, pos+2));

stultuske

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Nearly a Posting Maven

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Feb 26th, 2008

Re: Dividing a string

Click to Expand / Collapse Quote originally posted by stultuske ...

but if it's "ee" you want as result:

int pos = firstString.indexOf("ee");
System.out.println(firstString.substring(pos, pos+2));

if it is only "ee" then use

String s=firstString.substring(8,10);
System.out.println(s);

it will give the output "ee"
but if you would want any arbitary substring then your opinion is correct.
But then if you want an arbitary substring of three or more characters then it would not work, and you would be writing firstString.substring(pos,pos+3) or String.substring(pos,pos+4).

Anyway, thanks for sending me your opinion about this.

Parsu7

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