定义标准的学生类
package com.itheima_03;
/*
* 定义一个标准的学生类,在主方法中创建对象并调用
* 姓名,年龄,性别3个成员变量
* 无参,有参两个构造方法
* 为每个成员变量定义getter/setter方法(可以做一些判断来校验我们数据的安全性完整性)
* 定义一个show方法,输出成员变量
*/
public class Student {
//姓名
private String name;
//年龄
private int age;
//性别
private String gender;
//无参构造
public Student() {
}
//有参构造
public Student(String name, int age, String gender) {
this.name = name;
this.age = age;
this.gender = gender;
}
//name
public String getName() {//返回姓名
return name;
}
public void setName(String name) {//赋值
this.name = name;
}
//age
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
//gender
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
//show:用于输出所有的成员变量
public void show() {
System.out.println(name + ","+ age + "," + gender);
}
}
package com.itheima_03;
public class Test {
public static void main(String[] args) {
Student s = new Student("张三",18,"男");
s.show();//张三,18,男
// System.out.println(s.getName());//张三
Student s2 = new Student();
s2.setName("李四");
s2.setAge(20);
s2.setGender("其他");
s2.show();//李四,20,其他
}
}