java中的HashSet(HashSet in java)

 我学习编程java，我有关于java.util.HashSet的问题我的问题，如何在hashset中显示size（）我的代码 
 
// class Student

package name;
public class Student
{
   private String name;
   public String getName()
   {
      return this.name;
   }
   public void setName(String name)
   {
     this.name = name;
   }
}
// Entry Point
package client;
import name.Student;
import java.util.Set;
import java.util.HashSet;
import java.util.Scanner;
public class Client1
{
    public static void main (String[] args)
    {
       Scanner scan = new Scanner(System.in);
       Set<Student> students = new HashSet<Student>();
       Student student = new Student();

       int totalStudent = 0;
       System.out.print("TypeTotal Student : ");
       totalStudent = Integer.parseInt(scan.nextLine());

       for(int i = 0; i < totalStudent ; i++)
       {
           System.out.print("Name : ");
           String name = scan.nextLine();
           student.setName(name);
           students.add(student);
       }
       System.out.println("Element Total In Set :" students.size());
       for(Student std: students)
       {
           System.out.println(std.getName());
       }
    }
}
 
 如果我在终端student.size（）中运行此代码不会增加。 我需要建议 

I study programming java, and i have problem about java.util.HashSet my question, How to show size() in hashset this my code
 
// class Student

package name;
public class Student
{
   private String name;
   public String getName()
   {
      return this.name;
   }
   public void setName(String name)
   {
     this.name = name;
   }
}
// Entry Point
package client;
import name.Student;
import java.util.Set;
import java.util.HashSet;
import java.util.Scanner;
public class Client1
{
    public static void main (String[] args)
    {
       Scanner scan = new Scanner(System.in);
       Set<Student> students = new HashSet<Student>();
       Student student = new Student();

       int totalStudent = 0;
       System.out.print("TypeTotal Student : ");
       totalStudent = Integer.parseInt(scan.nextLine());

       for(int i = 0; i < totalStudent ; i++)
       {
           System.out.print("Name : ");
           String name = scan.nextLine();
           student.setName(name);
           students.add(student);
       }
       System.out.println("Element Total In Set :" students.size());
       for(Student std: students)
       {
           System.out.println(std.getName());
       }
    }
}
 
if i run this code in terminal student.size() not increase. i need advice

原文：https://stackoverflow.com/questions/50118040