The charAt() method is used to provide a single character by its index within a string.
The charAt() method is used to provide a single character by its index within a string.
Questions tagged [charat]
261 questions
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3 answers
Java charAt() String index out of range: 5
I am trying to figure out "what 5-digit number when multiplied by 4 gives you its reverse?" using this code but I get error: Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 5
at…
Vayelin
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charAt() and Math.pow()
Background:
I am making a simple base converter for a class assignment. I am fairly close to completion but need to tidy up the conversion algorithm to convert the user inputted value (in a given base) to a base 10 value.
Attempt:
import…
jclark754
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IndexOutOfBounds Exception Java String Class charAt Method
Method CharAt of the Java String class throws a StringIndexOutOfBoundsException. But the Java API documentation says it throws an IndexOutOfBoundsException. I know that StringIndexOutOfBoundsException is a subclass of IndexOutOfBoundsException. But…
hohum
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RegExp for current character JavaScript
I'm trying to validate a character to make sure it's a letter (not a number, symbol, etc.) BEFORE it's allowed to be entered into the form field. How can I do that with JavaScript?
Here is something I tried: