java定义一个Person类，里面有姓名、性别、年龄，年龄必须只能是0到150岁，性别只能是男或者女，然后在mian方法里面测试

下面是一个例子：

public class Person {
    private String name;
    private String gender;
    private int age;

    public Person(String name, String gender, int age) {
        this.name = name;
        setGender(gender);
        setAge(age);
    }

    // Getter and setter methods

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        if(gender.equalsIgnoreCase("男") || gender.equalsIgnoreCase("女")) {
            this.gender = gender;
        } else {
            throw new IllegalArgumentException("性别必须为'男'或'女'");
        }
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        if(age >= 0 && age <= 150) {
            this.age = age;
        } else {
            throw new IllegalArgumentException("年龄必须为0到150岁之间");
        }
    }
}

你可以在main方法里面测试这个类，例如：

public class Main {
    public static void main(String[] args) {
        Person person1 = new Person("张三", "男", 20);
        Person person2 = new Person("李四", "女", 180); // 这里会抛出异常，因为年龄超过了150岁
        Person person3 = new Person("王五", "未知", 30); // 这里会抛出异常，因为性别不是男或女

        System.out.println("person1: " + person1.getName() + " " + person1.getGender() + " " + person1.getAge());
    }
}