Example usage for java.lang Character codePointCount

Introduction

In this page you can find the example usage for java.lang Character codePointCount.

Prototype

public static int codePointCount(char[] a, int offset, int count) 

Source Link

Document

Returns the number of Unicode code points in a subarray of the char array argument.

Usage

From source file:Main.java

public static void main(String[] args) {
    char[] c = new char[] { 'a', 'b', 'c', 'd', 'e' };

    int offset = 1, count = 3;

    int res = Character.codePointCount(c, offset, count);

    String str = "Number of Unicode code points is " + res;

    System.out.println(str);//from   w w  w  .  ja  v  a 2s  . c o m
}

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From source file:Main.java

public static void main(String[] args) {
    CharSequence seq = "Hello World from java2s.com!";
    int beginIndex = 4, endIndex = 8;

    int res = Character.codePointCount(seq, beginIndex, endIndex);

    String str = "Number. of Unicode code points is " + res;

    System.out.println(str);/*w ww.  j  av  a 2s.  c  o m*/
}

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From source file:jp.furplag.util.commons.StringUtils.java

/**
 * return the Array of Unicode code points in the string.
 *
 * @param str the string, may be null./*from w w  w  .  j  ava 2  s  .  c  om*/
 * @return Array of codepoints.
 */
public static int[] getCodePoints(final String str) {
    char[] chars = defaultString(str).toCharArray();
    int[] ret = new int[Character.codePointCount(chars, 0, chars.length)];
    int index = 0;
    for (int i = 0, codePoint; i < chars.length; i += Character.charCount(codePoint)) {
        codePoint = Character.codePointAt(chars, i);
        ret[index++] = codePoint;
    }

    return ret;
}

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