StringIndexOutOfBoundsException
The StringIndexOutOfBoundsException
is an exception that occurs when a String
method tries to use an index that is either negative or greater than the size of the String
.
Example
The following example creates a StringIndexOutOfBoundsException
:
public class ErrorExample {public static void main(String[] args) {String greeting = "Hello World";System.out.println(greeting.charAt(-1));}}
The output is something like this:
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: -1at java.base/java.lang.StringLatin1.charAt(StringLatin1.java:48)at java.base/java.lang.String.charAt(String.java:1512)at ErrorExample.main(ErrorExample.java:4)