fix code

hutool-core/src/main/java/org/dromara/hutool/core/text/CodePointIter.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2024. looly(loolly@aliyun.com)
+ * Hutool is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *          https://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+
+package org.dromara.hutool.core.text;
+
+import java.util.Iterator;
+
+/**
+ * Unicode字符遍历器<br>
+ * 参考：http://stackoverflow.com/a/21791059/6030888
+ *
+ * @author Looly
+ */
+public class CodePointIter implements Iterable<Integer> {
+
+	final String str;
+
+	/**
+	 * 构造
+	 *
+	 * @param str 字符串
+	 */
+	public CodePointIter(final String str) {
+		this.str = str;
+	}
+
+	@Override
+	public Iterator<Integer> iterator() {
+		return new Iterator<Integer>() {
+
+			private final int length = str.length();
+			private int nextIndex = 0;
+
+			@Override
+			public boolean hasNext() {
+				return this.nextIndex < this.length;
+			}
+
+			@Override
+			public Integer next() {
+				final int result = str.codePointAt(this.nextIndex);
+				this.nextIndex += Character.charCount(result);
+				return result;
+			}
+
+			@Override
+			public void remove() {
+				throw new UnsupportedOperationException();
+			}
+		};
+	}
+}