Java String codePointCount() Method
Example
Return the number of Unicode values found in a string:
public class MyClass {
public static void main(String[] args) {
String myStr = "Hello";
int result = myStr.codePointCount(0, 5);
System.out.println(result);
}
}
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
