how to copy a part of string into another string

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i'm trying this code to copy last part on string which contain year...
so i would be able to calculat age from this...

string DOB = "10/10/1992"
string Year = "";
int j=0;
for(int i = 5 ; i < 10 ; i ++)
{
year[j]=DOB[i];// error
j++;
}

Posted 15-Feb-14 1:05am

Ammar Shaukat

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Varsha Ramnani 15-Feb-14 7:11am

are you using C#?
If yes you can use datetime variable for DOB and use variablename.Year to find year.

Ammar Shaukat 22-Apr-14 13:28pm

right..

3 solutions

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OriginalGriff · Accepted Answer · 2014-02-15T01:11:00

No - you can't do that, because strings are immutable, which measn that once a string has been created, you cannot change it in any way. If you want to extract part of a string, then you need to create a new string from the existing one:

C#

string DOB = "10/10/1992";
string year = DOB.Substring(6, 4);

Or better, parse the date into a DateTime, and then get the year from that:

C#

string DOB = "10/10/1992";
DateTime dob = DateTime.Parse(DOB);
string year = dob.Year.ToString();

This works more flexibly, when the user can enter dates as it copes with more date formats than an explicit substring.

King Fisher · Accepted Answer · 2014-02-15T01:11:00

Solution 2

C#

string DOB = "10/10/1992"
datetime DOB= datetime.parse(dob.tostring());

int year=DOB.year;

Posted 15-Feb-14 1:11am

King Fisher

Comments

Ammar Shaukat 15-Feb-14 7:21am

getting error....
above solution works well... thanku

King Fisher 15-Feb-14 7:35am

whats your error

Ammar Shaukat 11-Mar-14 13:49pm

done...

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Accepted Answer · 2014-02-15T01:10:00

Solution 1

C#

Year = DOB.Split('/').Last();

Posted 15-Feb-14 1:10am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)