以下是使用 Java 实现的代码: ```java public class Student { private String className; private String name; private int age; private String birthday; private Student(String className, String name, int age, String birthday) { this.className = className; this.name = name; this.age = age; this.birthday = birthday; } public static void study() { System.out.println("好好学习,天天向上"); } public String getInfo() { return name + "," + age + "岁,生日:" + birthday; } public static void main(String[] args) { Student zhangSan = new Student("一班", "张三", 15, "9月12日"); Student liSi = new Student("一班", "李四", 15, "9月15日"); System.out.println(zhangSan.getInfo()); System.out.println(liSi.getInfo()); } } ``` [2024-09-18 16:15:05 | AI写代码神器 | 236点数解答]