2019年2月22日,集合框架——List、Set、Map作业
java编写源文件地址为:
链接:https://pan.baidu.com/s/1jeScQwPd6J1MsTYkwWxriw
提取码:102x
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作业:
本题目使用Map集合;
编写Student类:
package com.jihe.zuoye; public class Student { private String name; private String sex; public Student() { } public Student(String name, String sex) { this.name = name; this.sex = sex; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } }
编写StudentMap类:
package com.jihe.zuoye; import java.util.HashMap; import java.util.Map; import java.util.Set; public class StudentMap { public static void main(String[] args) { Student stu1 = new Student("张三","男"); Student stu2 = new Student("王四","女"); Student stu3 = new Student("赵五","男"); Map<String,Student> map = new HashMap<String,Student>(); map.put("Jo",stu1); map.put("Lily",stu2); map.put("Smith",stu3); Set<String> keys = map.keySet(); for(String key:keys){ System.out.println(key+"的中文名为:"+map.get(key).getName()+",性别为:"+map.get(key).getSex()); } } }
输出结果为:
Jo的中文名为:张三,性别为:男
Smith的中文名为:赵五,性别为:男
Lily的中文名为:王四,性别为:女