Java 96. Cách sử dụng JCombobox và JList trong Java Swing

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vui lòng không đăng tải lại nội dung từ trang này.

Video giải thích chi tiết

 Code chi tiết 

package model;

import java.util.StringTokenizer;

public class ThucDonModel {
	private String luaChon_MonChinh;
	private String luaChon_MonPhu;
	private double tongTien;

	public ThucDonModel() {
		this.luaChon_MonChinh = "";
		this.luaChon_MonPhu = "";
		this.tongTien = 0;
	}

	public String getLuaChon_MonChinh() {
		return luaChon_MonChinh;
	}

	public void setLuaChon_MonChinh(String luaChon_MonChinh) {
		this.luaChon_MonChinh = luaChon_MonChinh;
	}

	public String getLuaChon_MonPhu() {
		return luaChon_MonPhu;
	}

	public void setLuaChon_MonPhu(String luaChon_MonPhu) {
		this.luaChon_MonPhu = luaChon_MonPhu;
	}

	public double getTongTien() {
		return tongTien;
	}

	public void setTongTien(double tongTien) {
		this.tongTien = tongTien;
	}

	public void tinhTongTien() {
		this.tongTien = 0;
		if(this.luaChon_MonChinh.equals("CƠM")) {
			tongTien+= 20000;
		}else if(this.luaChon_MonChinh.equals("PHỞ")) {
			tongTien+= 50000;
		}else if(this.luaChon_MonChinh.equals("BÁNH MÌ")) {
			tongTien+= 15000;
		}
		
		
		StringTokenizer stk = new StringTokenizer(this.luaChon_MonPhu, ";");
		while(stk.hasMoreElements()) {
			String monPhu = stk.nextToken();
			monPhu = monPhu.trim();
			if(monPhu.equals("TRÀ SỮA")) {
				tongTien+= 5000;
			}else if(monPhu.equals("COCACOLA")) {
				tongTien+= 10000;
			}else if(monPhu.equals("BÁNH NGỌT")) {
				tongTien+= 15000;
			}else if(monPhu.equals("NEM")) {
				tongTien+= 20000;
			}
		}
	}

}

     

package view;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionListener;
import java.util.ArrayList;

import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JRadioButton;

import control.ThucDonController;
import model.ThucDonModel;

public class ThucDonView extends JFrame {
	public ThucDonModel thucDonModel;
	public JLabel jLabel_ThongTin;
	public ArrayList<JCheckBox> list_buttonGroup_MonPhu;
	public JComboBox<String> jComboBox_MonChinh;
	public JList<String> jList_MonPhu;

	public ThucDonView() {
		this.thucDonModel = new ThucDonModel();
		init();
	}

	private void init() {
		this.setSize(600, 600);
		this.setLocationRelativeTo(null);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setLayout(new BorderLayout());

		Font font = new Font("Arial", Font.BOLD, 40);

		JLabel header = new JLabel("THỰC ĐƠN NHÀ HÀNG TITV");
		header.setFont(font);

		JPanel jPanel_TieuDe = new JPanel();
		jPanel_TieuDe.add(header);
		this.add(jPanel_TieuDe, BorderLayout.NORTH);

		JPanel jPanel_MonChinh = new JPanel();
		jPanel_MonChinh.setLayout(new FlowLayout());
		String[] cacMonChinh = new String[] {"CƠM","PHỞ", "BÁNH MÌ"};
		jComboBox_MonChinh  = new JComboBox<String>(cacMonChinh);
		jComboBox_MonChinh.setFont(font);
		jPanel_MonChinh.add(jComboBox_MonChinh);

		JPanel jPanel_MonPhu = new JPanel();
		jPanel_MonPhu.setLayout(new GridLayout(2, 2));
		String[] cacMonPhu= new String[] {"TRÀ SỮA","COCACOLA","BÁNH NGỌT", "NEM"};
		jList_MonPhu = new JList<String>(cacMonPhu);
		jList_MonPhu.setFont(font);
		jPanel_MonPhu.add(jList_MonPhu);

		JPanel jPanel_LuaChon = new JPanel();
		jPanel_LuaChon.setLayout(new BorderLayout());
		jPanel_LuaChon.add(jPanel_MonChinh, BorderLayout.NORTH);
		jPanel_LuaChon.add(jPanel_MonPhu, BorderLayout.CENTER);

		this.add(jPanel_LuaChon, BorderLayout.CENTER);

		JPanel jPanel_ThanhToan = new JPanel();
		jPanel_ThanhToan.setLayout(new GridLayout(1, 2));
		jLabel_ThongTin = new JLabel();
		jLabel_ThongTin.setFont(new Font("Arial",Font.BOLD, 20));
		JButton jButton_ThanhToan = new JButton("Thanh Toán");
		jButton_ThanhToan.setFont(font);
		ActionListener thucDonController = new ThucDonController(this);
		jButton_ThanhToan.addActionListener(thucDonController);
		jPanel_ThanhToan.add(jLabel_ThongTin);
		jPanel_ThanhToan.add(jButton_ThanhToan);
		this.add(jPanel_ThanhToan, BorderLayout.SOUTH);

		this.setVisible(true);
	}

	public void hienThiKetQua() {
		String kq = "Món chính: " + this.thucDonModel.getLuaChon_MonChinh()
					+ "; Món phụ: " + this.thucDonModel.getLuaChon_MonPhu()
					+ "; Tổng tiền: " + this.thucDonModel.getTongTien();
		this.jLabel_ThongTin.setText(kq);
	}
}

     

package control;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Enumeration;

import javax.swing.AbstractButton;
import javax.swing.JRadioButton;

import view.ThucDonView;

public class ThucDonController implements ActionListener {
	private ThucDonView thucDonView;

	public ThucDonController(ThucDonView thucDonView) {
		this.thucDonView = thucDonView;
	}

	@Override
	public void actionPerformed(ActionEvent e) {
		String monChinh = thucDonView.jComboBox_MonChinh.getSelectedItem().toString();

		String monPhu = "";
		Object[] luaChonMonPhus = thucDonView.jList_MonPhu.getSelectedValues();
		for (Object o : luaChonMonPhus) {
			monPhu = monPhu + o.toString() + "; ";
		}

		thucDonView.thucDonModel.setLuaChon_MonChinh(monChinh);
		thucDonView.thucDonModel.setLuaChon_MonPhu(monPhu);
		thucDonView.thucDonModel.tinhTongTien();
		thucDonView.hienThiKetQua();
	}

}

     

package Test;

import javax.swing.UIManager;

import view.ThucDonView;

public class TestThucDon {
	public static void main(String[] args) {
		try {
			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
			new ThucDonView();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}