java. 设计一个教师类，教师信息有身份证号、教师号、专业、姓名、性别、年龄及授课的学时数。对象并输出对象的信息。 如Java 类的

代码如下：

public class Teacher {
    private String idNumber; // 身份证号
    private String teacherNumber; // 教师号
    private String major; // 专业
    private String name; // 姓名
    private String gender; // 性别
    private int age; // 年龄
    private int teachingHours; // 授课学时数

    // 构造函数
    public Teacher(String idNumber, String teacherNumber, String major, String name, String gender, int age, int teachingHours) {
        this.idNumber = idNumber;
        this.teacherNumber = teacherNumber;
        this.major = major;
        this.name = name;
        this.gender = gender;
        this.age = age;
        this.teachingHours = teachingHours;
    }

    // 输出教师信息
    public void printTeacherInfo() {
        System.out.println("身份证号：" + idNumber);
        System.out.println("教师号：" + teacherNumber);
        System.out.println("专业：" + major);
        System.out.println("姓名：" + name);
        System.out.println("性别：" + gender);
        System.out.println("年龄：" + age);
        System.out.println("授课学时数：" + teachingHours);
    }

    // getter 和 setter 方法
    public String getIdNumber() {
        return idNumber;
    }

    public void setIdNumber(String idNumber) {
        this.idNumber = idNumber;
    }

    public String getTeacherNumber() {
        return teacherNumber;
    }

    public void setTeacherNumber(String teacherNumber) {
        this.teacherNumber = teacherNumber;
    }

    public String getMajor() {
        return major;
    }

    public void setMajor(String major) {
        this.major = major;
    }

    public String getName() {
        return name;
    }

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

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public int getTeachingHours() {
        return teachingHours;
    }

    public void setTeachingHours(int teachingHours) {
        this.teachingHours = teachingHours;
    }
}

使用示例：

public class TeacherTest {
    public static void main(String[] args) {
        Teacher teacher = new Teacher("123456789012345678", "1001", "计算机科学与技术", "张三", "男", 35, 30);
        teacher.printTeacherInfo();
    }
}

输出结果：

身份证号：123456789012345678
教师号：1001
专业：计算机科学与技术
姓名：张三
性别：男
年龄：35
授课学时数：30