可以参考下,
如果有帮助,请采纳
public class Student {
//可以添加一些属性
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Student(String name) {
this.name = name;
}
@Override
public String toString() {
return "Student{" +
"name='" + name + '\'' +
'}';
}
public static void main(String[] args) {
Map<String, Student> map = new HashMap<>();
map.put("1", new Student("张三"));
map.put("2", new Student("李四"));
map.forEach((k,v)->{
System.out.println(String.format("学号是:%s,学生信息:%s",k,v));
});
}
}