5
我有一个哈希映射，我希望它的数据在JTable中查看我怎么一直无法获得哈希映射的行和列的数据量显示。我有一个哈希映射它将accountID作为键和学生对象，其中每个学生都有他们的数据，比如姓名，ID，年龄等，但不管引用JTable文档，它都表示我需要将行和列以及多维数组类型的对象。我该怎么做？我可以将我的哈希映射变成多维数组吗？如何使用哈希映射与JTable
- 编辑我编辑了我的问题，以便它可以更清楚，我相当新的Java我真的不知道你们有些人已经发布，尤其是因为我正在做的工作是非常相关的面向对象和掌握面向对象的概念是我最大的挑战，
/我有一个dataStorage类，注册用户添加到他的用户名，它是getUser键输入HashMap。/
import java.util.*;
public class DataStorage
{
HashMap<String, Student> students = new HashMap<String, Student>();
HashMap<String, Staff> staffMembers = new HashMap<String, Staff>();
//Default constructor
public DataStorage(){
}
public void addStaffMember(Staff aAcc)
{
staffMembers.put(aAcc.getUser(),aAcc);
}
public void addStudentMember(Student aAcc)
{
students.put(aAcc.getUser(),aAcc);
}
public Staff getStaffMember(String user)
{
return staffMembers.get(user);
}
public Student getStudent(String user)
{
return students.get(user);
}
public int getStudentRows()
{
return students.size();
}
}
/****这是扩展客户*** /一个学生类
public class Student extends Account {
private String studentNRIC;
private String diploma;
private String gender;
private double level;
private int credits;
private int age;
private boolean partTime;
private boolean havePc;
private boolean haveChild;
public Student(String n, String nr, String id, String dep, String user, String pass)
{
super(n, dep, user, pass, id);
studentNRIC = nr;
}
public void setPartTime(boolean state)
{
if(state == true)
{
partTime = true;
}
else
{
partTime = false;
}
}
public boolean getPartTime()
{
return partTime;
}
public void setHavePc(boolean state)
{
if(state == true)
{
havePc = true;
}
else
{
havePc = false;
}
}
public boolean getHavePc()
{
return havePc;
}
public void setHaveChild(boolean state)
{
if(state == true)
{
haveChild = true;
}
else
{
haveChild = false;
}
}
public boolean getHaveChild()
{
return haveChild;
}
public void setDiploma(String dip)
{
diploma = dip;
}
public String getDiploma()
{
return diploma;
}
public void setCredits(String cre)
{
credits = Integer.parseInt(cre);
}
public int getCredits()
{
return credits;
}
public void setGender(String g)
{
gender = g;
}
public String getGender()
{
return gender;
}
public void setAge(String a)
{
age = Integer.parseInt(a);
}
public int getAge()
{
return age;
}
public void setLevel(String lvl)
{
level = Double.parseDouble(lvl);
}
public double getLevel()
{
return level;
}
public void setStudentNRIC(String nr)
{
studentNRIC = nr;
}
public String getStudentNRIC()
{
return studentNRIC;
}
}
/****这是一个帐户超***/
public class Account {
private String name;
private String department;
private String username;
private String password;
private String accountID;
public Account()
{
}
public Account(String nm,String dep,String user,String pass, String accID)
{
name = nm;
department = dep;
username = user;
password = pass;
accountID = accID;
}
public void setName(String nm)
{
name = nm;
}
public String getName()
{
return name;
}
public void setDep(String d)
{
department = d;
}
public String getDep()
{
return department;
}
public void setUser(String u)
{
username = u;
}
public String getUser()
{
return username;
}
public void setPass(String p)
{
password = p;
}
public String getPass()
{
return password;
}
public void setAccID(String a)
{
accountID = a;
}
public String getAccID()
{
return accountID;
}
}
展示'AbstractTableModel'的一个完整示例显示在[这里]（http://stackoverflow.com/a/9134371/230513）。 – trashgod 2016-05-01 16:51:43