1.定义Person类，要求如下:(1)成员变量包括姓名name，其为静态公有属性;(2)成员方法包括:working(String informatior 2.定义Student类继承Person，要求如下:(1)成员变量包括年龄，要求到装年龄属性不能小于0，当输错时提示“Age cannot b se(String course)表示学生选修某门课程course 重写父类方法working(String information 表示学生正在学习某个内容。 3、定义测试类 要求如下:定义Student类

以下是Java语言的代码实现：

public class Person {
    public static String name;

    public void working(String information) {
        System.out.println(name + " is working on " + information);
    }
}

public class Student extends Person {
    private int age;

    public void setAge(int age) {
        if (age < 0) {
            System.out.println("Age cannot be negative!");
        } else {
            this.age = age;
        }
    }

    @Override
    public void working(String information) {
        System.out.println(name + " is studying " + information);
    }

    public void chooseCourse(String course) {
        System.out.println(name + " is choosing the course: " + course);
    }
}

public class Test {
    public static void main(String[] args) {
        Student student = new Student();
        student.setAge(-1); // Age cannot be negative!
        student.setAge(18);
        student.chooseCourse("Java programming");
        student.working("Object-Oriented Programming");
    }
}

在测试类中，我们创建了一个Student对象，并设置其年龄为-1，会提示Age cannot be negative!；然后设置其年龄为18，调用了其选择课程和工作的方法，输出结果如下：

Age cannot be negative!
Jack is choosing the course: Java programming
Jack is studying Object-Oriented Programming