java定义一个Person类,包括成员变量name(姓名)、sex(性别)、age(年龄)和成员方法p

class Person { public String name; public String sex; public int age; public Person() { } public Person(String name, int age) { this.name = name; this.age = age; } public void setSex(String sex) { this.sex = sex; } pub