codePointAt() - String Method in Java
This article is a part of String Methods in Java.
This method returns the Unicode value
of the character at the specified
index. Let me tell you if you don`t know already, that the index of the first character of a
string is 0. The parameter is of int type, representing the index of the character
in the
string.
Return type
The return type of the codePointAt() method is int. Let us look at an example code to understand it better.
Example
Output
Let us look at the output of the above example code.
Here the index = 1 points to the character āeā, the Unicode value of āeā is 101 which is displayed in the output console.
IndexOutOfBound exception in codePointAt()
When we pass negative index or an index greater than length() - 1 then the codePointAt() method throws IndexOutOfBound exception. Let us look at the code for this case.
Output
Let us look at the output of the above example code.
Since, the index is a negative number the method throws an exception.