Students find objects based on students English

Student category

com.twod1z Package Penalty for; / ** * @program: com.twod1z * @description: Students find objects (student category) according to participants English * @author: Mr.Lin * @Create: 2019 Nian 7 Yue 27 Ri ** / class Student {public Private String name; Private Sex char; public Student () {} public Student(String name, char sex) { this.name = name; this.sex = sex; } public String getName() { return name; } public void setName(String name) { this.name = name; } public char getSex() { return sex; } public void setSex(char sex) { this.sex = sex; } }

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Test category

package com.twod1z; import java.util.HashMap; import java.util.Map; import java.util.Set; /** * @program: com.twod1z * @description:根据学员英文名找到学员对象（测试类） * @author: Mr.Lin * @create: 2019年7月27日 **/ public class Text { public static void main(String[] args) { Student s1 = new Student("张明",'男'); Student s2 = new Student("李欣",'女'); Student s3 = new Student("王武",'男'); Map<String,Student>m = new HashMap<String,Student>(); m.put("Jack", s1); m.put("Mary", s2); m.put("Michael", s3); Set<String>s = m.keySet(); for (String str : s) { Student stu = m.get(str); System.out.println(str+"对应的学员姓名是："+stu.getName()+"；性别是："+stu.getSex()); } } }