Character isEmoji and some others added to java 21

In java 21 we get new API for emojis like below

    isEmoji(int codePoint)
    isEmojiComponent(int codePoint)
    isEmojiModifier(int codePoint)
    isEmojiModifierBase(int codePoint)
    isEmojiPresentation(int codePoint)
    isExtendedPictographic(int codePoint)

here is a working example

public static void main(String[] args) {
    StringBuilder sb = new StringBuilder();
    sb.appendCodePoint(0x1F600); // Grinning face
    sb.appendCodePoint(0x1F601); // Grinning face with big eyes
    sb.appendCodePoint(0x1F602); // Grinning face with tears
    sb.appendCodePoint(0x1F923); // Rolling on the floor laughing
    sb.appendCodePoint(0x1F970); // Smiling face with hearts
    sb.appendCodePoint(0x1F60D); // Smiling face with heart-eyes
    sb.appendCodePoint(0x1F929); // Star-struck
    sb.appendCodePoint(0x1F618); // Face blowing a kiss
    sb.appendCodePoint(0x1F617); // Kissing face
    sb.appendCodePoint(0x263A); // Smiling face
    System.out.println(sb);

    var codePoint = Character.codePointAt("😃", 0);
    var isEmoji = Character.isEmoji(codePoint);
    System.out.println("😃 is an emoji: " + isEmoji);

    int[] surrogates = { 0xD83D, 0xDC7D };
    String alienEmojiString = new String(surrogates, 0, surrogates.length);
    System.out.println(alienEmojiString);
}

seeing these emojis in vscode

looks nicer compared to intellij