枚举

枚举：严格限制了输入的范围

Sex.java

package com.sxt.utils.enum1;

public enum Sex {
    男,女;
}

Student.java

package com.sxt.utils.enum1;

public class Student {
    private String name;
    private Sex sex;//sex 枚举类型
    public Student(String name, Sex sex) {//sex 枚举类型
        super();
        this.name = name;
        this.sex = sex;
    }
    public Student() {
        super();
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public Sex getSex() {//sex 枚举类型
        return sex;
    }
    public void setSex(Sex sex) {//sex 枚举类型
        this.sex = sex;
    }
    @Override
    public String toString() {
        return "Student [name=" + name + ", sex=" + sex + "]";
    }
    
}

TestSex.java

package com.sxt.utils.enum1;

public class TestSex {
    public static void main(String[] args) {
        Student s = new Student();
        s.setName("小明");
        s.setSex(Sex.男);
        System.out.println(s.getName());
        System.out.println(s.getSex());
    }
}