学生类
package com.twod1z; /** * @program: com.twod1z * @description:根据学员英文名找到学员对象(学生类) * @author: Mr.Lin * @create: 2019年7月27日 **/public class Student { private String name; private char sex; 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; }} | |
测试类
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()); } }} |
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