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Java String codePointCount() Method

❮ String Methods


Example

Return the number of Unicode values found in a string:

String myStr = "Hello";
int result = myStr.codePointCount(0, 5);
System.out.println(result);

Run example »


Definition and Usage

The codePointCount() method returns the number of Unicode values found in a string.

Use the startIndex and endIndex parameters to specify where to begin and end the search.

The index of the first character is 0, the second character is 1, and so on.


Syntax

public int codePointCount(int startIndex, int endIndex)

Parameter Values

Parameter Description
startIndex An int value, representing the index to the first character in the string
endIndex An int value, representing the index after the last character in the string

Technical Details

Returns: An int value, representing the number of Unicode values found in a string
Throws: IndexOutOfBoundsException - if startIndex is negative, or endindex is larger than the length of the string, or startIndex is larger than endIndex
Java Version: 1.5

❮ String Methods