Find the length of string in apex
To find the length of a string in apex, you can use the length() function, which returns an integer. The length() method is used to validate the length of an input string to prevent saving records that exceed certain limits.
For example, to prevent users from storing email addresses longer than 80 characters, the length function can be used.
Length of string
Characters:
H
e
l
l
o
W
o
r
l
d
!
Index positions:
0
1
2
3
4
5
6
7
8
9
10
11
Length: 12 characters
Following is a sample code for finding the length of the above string in apex
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In the above example:
- In the above example,
inputString, is a string variable with the default value 'Hello World'. - The
length()method is used to find the length of the string. - The string
length()function returns an integer number, the length of the string.
Try It Yourself
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