单击按钮后打开内部Jframe

Question

我写了这段代码 EmployeeTable.java

package com.xyz.view.employeelist;

import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import com.xyz.view.iframe.employeedetail.EmployeeofficeDetail;

public class EmployeeTable extends JFrame
{
private JTextField Find;
private JLabel jFind,jDepartment,jDesignation,byName,bySalary;
private JButton SearchButton,add_Employee,getList,removeEmployee,save;
private JComboBox<String> Department, Designation;
private JTable EmpTable;
private JScrollPane  EmpTableScrollpane;
private JRadioButton sortByName,sortBySalary;
private ButtonGroup radioButton;
EmployeeofficeDetail e;

EmployeeTable()
{   

    setLayout(null);

    //------------ Text Feild ---------------------------
    jFind = new JLabel("Find :");
    jFind.setFont(new Font("Copperplate Gothic", Font.PLAIN, 16));
    jFind.setBounds(10, 20, 40, 20);

    Find = new JTextField(5);
    Find.setBounds(70, 20, 100, 20);

    //--------------------- Search Button -------------------------
    SearchButton = new JButton("Search");
    SearchButton.setBounds(190,20, 80, 20);

    //--------------------------- Get all list -------------------------

    getList = new JButton("Get All Employee List");
    getList.setBounds(160, 360, 200, 20);

    //---------------------- Add new Employee button -----------------

    add_Employee = new JButton("ADD Employee");
    add_Employee.setBounds(10, 400, 120, 20);

    //--------------------- Remove Employee Button --------------------

    removeEmployee = new JButton("Remove Employee");
    removeEmployee.setBounds(150, 400, 140, 20);

    //---------------------- Save Button -------------------------

    save = new JButton("Save");
    save.setBounds(310, 400, 100, 20);

    //------------------- Department Combobox ----------------------

    jDepartment = new JLabel("Department");
    jDepartment.setFont(new Font("Copperplate Gothic", Font.PLAIN, 16));
    jDepartment.setBounds(10, 50, 90, 30);
    String department[]={"Select Department","Software Development","Testing","Database","Financial","Planning","Human Resources"};
    Department = new JComboBox<String>(department);
    Department.setBounds(100, 50, 200, 30);

    //----------------- Designation Combobox -------------------------

    jDesignation = new JLabel("Designation");
    jDesignation.setBounds(10, 100,90, 20);
    jDesignation.setFont(new Font("Copperplate Gothic", Font.PLAIN, 16));
    String post[]={"Select Designation","Junior Developer","Senior Developer","Project Manager","Manager","Tester","Trainee"};
    Designation = new JComboBox<String>(post);
    Designation.setBounds(110, 100, 200, 30);

    //--------------------- Table -------------------------------

    Object[] column = {"ID","Name","salary","Designation","Department","Date of Joining"};
    Object[][] data = {{1,"amit"},{2,"raj"},{3,"ram"},{4,"rina"},{5,"sara"}};
    TableModel emp = new DefaultTableModel(data, column);
    EmpTable = new JTable(emp);
    EmpTableScrollpane = new JScrollPane(EmpTable);
    EmpTableScrollpane.setBounds(10, 140, 480, 200);

    //--------------------------- Radio Buttons -------------------------

    radioButton = new ButtonGroup();

    sortByName = new JRadioButton("Sort Table By Name");
    sortByName.setBounds(10, 430, 160, 20);

    sortBySalary = new JRadioButton("Sort Table By Salary");
    sortBySalary.setBounds(200, 430, 160, 20);


    add(jFind);
    add(Find);
    add(SearchButton);
    add(jDepartment);
    add(Department);
    add(jDesignation);
    add(Designation);
    add(EmpTableScrollpane);
    add(getList);
    add(add_Employee);
    add(removeEmployee);
    add(save);

    radioButton.add(sortByName);
    radioButton.add(sortBySalary);
    add(sortByName);
    add(sortBySalary);

    add_Employee.addActionListener(new ActionListener(){

        @Override
        public void actionPerformed(ActionEvent a) {
            if(a.getSource()==add_Employee)
            {
            e = new EmployeeofficeDetail();
                e.setTitle("Registration Form");
                e.setVisible(true);
            }       
        }
    });
} 
public static void main(String args[]) 
{
    JFrame f=new EmployeeTable();
    f.setVisible(true);;
    f.setSize(500, 500);
    f.setResizable(false);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}

和EmployeeOfficedetail.java

import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;

public class EmployeeofficeDetail extends JInternalFrame
{
private JTextField name;
private JLabel jName;
private JButton jSave,jNext;
private JComboBox<String> jDepartment;

public EmployeeofficeDetail()
{
    jName = new JLabel("Employee Name");

    name = new JTextField();

    jSave = new JButton();

    jDepartment = new JComboBox<String>();

    add(jName);
    add(name);
    add(jSave);
    add(jDepartment);
}
}

我想在点击添加员工按钮时打开EmployeeOfficedetail框架，以便可用的框架消失，但我的代码无效。以及如何在我的代码中为combobox和radiobutton编写actionlistener，因此可以相应地对表值进行排序。例如，如果我按名称选择单选按钮排序，它将根据名称对表进行排序。