.codePointCount()

Returns the number of Unicode values in specified range of a string.

Syntax

string.codePointCount(int indexStart, int indexEnd)

• indexStart (required): The index of the first character in the string to start counting from.
• indexEnd (required): One more than the index of the last character in the string to stop counting at.

Example 1

Print the number of Unicode values in the string "Hello World":

class CountUnicodeValues {
  public static void main(String[] args) {
    String s = "Hello World";

    System.out.println(s.codePointCount(0, 10));
    // Output: 10
  }
}