怎么把输出来的表情转换成类似这样的字符串\ue32d

[nicech6]

怎么把输出来的表情转换成类似这样的字符串\ue32d

[TakWolf]

public class Main {

    public static void main(String[] args) {
        String a = "你好，世界！";
        for (int i = 0; i < a.codePointCount(0, a.length()); i++) {
            int codePoint = a.codePointAt(i);
            System.out.println(Integer.toHexString(codePoint));
        }
        // 输出：4f60 597d ff0c 4e16 754c ff01
        System.out.println("\u4f60\u597d\uff0c\u4e16\u754c\uff01");
        // 输出：你好，世界！
    }

}

[ghost]

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