java将字符串从蛇形命名法转换为驼峰命名法

以下是将蛇形命名法转换为驼峰命名法的Java代码：

public static String snakeToCamel(String snakeCaseString) {
    StringBuilder camelCaseString = new StringBuilder();
    boolean nextUpperCase = false;

    for (int i = 0; i < snakeCaseString.length(); i++) {
        char currentChar = snakeCaseString.charAt(i);

        if (currentChar == '_') {
            nextUpperCase = true;
        } else {
            if (nextUpperCase) {
                camelCaseString.append(Character.toUpperCase(currentChar));
                nextUpperCase = false;
            } else {
                camelCaseString.append(currentChar);
            }
        }
    }

    return camelCaseString.toString();
}

使用示例：

String snakeCaseString = "hello_world";
String camelCaseString = snakeToCamel(snakeCaseString);

System.out.println(camelCaseString);   // 输出 "helloWorld"