package J20250714.demo03; /** * @author WanJl * @version 1.0 * @title TestTeacher * @description * @create 2025/7/14 */ public class TestTeacher { public static void main(String[] args) { //需求:先创建教师对象,暂时不进行年龄赋值。 Teacher t=new Teacher("t00001","张三",26); System.out.println(t.getAge()); t.setAge(62); System.out.println(t.getAge()); } }