- public class teacherDemo {
- public static void main(String[] args) {
- String name = "张三";
- int age = 25;
- teacher tea = new teacher();
- tea.setName(name);
- tea.setAge(age);
- System.out.println(tea.getAge());
- System.out.println(tea.getName());
- }
- }
- class teacher {
- private String name;
- private int age;
- // 属性
- public String getName() {
- return name;
- }
- public void setName(String sName) {
- name = sName;
- }
- public int getAge() {
- return age;
- }
- public void setAge(int sAge) {
- if (sAge < 22) {
- System.out.println("错误, 教师年龄不能小于 22 岁");
- sAge = 22;
- } else {
- age = sAge;
- }
- }
- }
java 封装
来源: http://www.bubuko.com/infodetail-2487078.html