Question

In Java: Create a GUI application that calculates the registration fees for a one-week summer camp. The general summer camp registration fee is $895 per person, but multiple children from the same family (after the first) are allowed a $200 discount. There is a lavish closing banquet, with awards for their children, which parents may attend for $25 (each). As many other optional pre- and post-activity sessions may be added (for indicated fee), thanks to scheduling them in exclusive time slots:

• Introduction to Horsemanship        $295
• Beginning Swimming                      145
• Advanced Archery                           115
• Mountain Biking on Steroids           245

The application should allow the user to select the registration type (e.g., first or multiple child), optional parent(s) dinner attendance, and as many pre/post-camp sessions as desired. The camper’s name should be requested during registration and displayed along with their chosen itinerary and total registration cost.

add surnames

Answer 1

Program in java:

//importing required classes
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;

//class definition
public class SummerCampGUI extends JFrame implements ActionListener,ItemListener{
    //variables
    JLabel lb1,lb2,lb3,lb4;
    JCheckBox cb1,cb2,cb3,cb4,cb5,cb6;
    JComboBox c1;
    JTextField tf1,tf2;
    JTextArea ta;
    JButton btn;
  
    //constructor
    public SummerCampGUI() {
        //intiallization
        lb1=new JLabel("Name");
        lb2=new JLabel("Surname");
        lb3=new JLabel("Registration type");
        lb4=new JLabel("Registration fees $895");
        tf1=new JTextField();
        tf2=new JTextField();
        ta=new JTextArea();
        String type[]={"Single","Multiple"};
        c1=new JComboBox(type);
        c1.addItemListener(this);
        cb1=new JCheckBox("Parents dinner           $25");
        cb2=new JCheckBox("Introduction to Horsemanship         $295");
        cb3=new JCheckBox("Beginning Swimming                   $145");
        cb4=new JCheckBox("Advanced Archery                     $115");
        cb5=new JCheckBox("Mountain Biking on Steroids          $245");
        btn=new JButton("Submit");
        btn.addActionListener(this);
      
        //specifying the component position
        setLayout(null);
        lb1.setBounds(50,50,150,20);
        lb2.setBounds(50,80,150,20);
        lb3.setBounds(50,110,150,20);
        c1.setBounds(200,110,150,20);
        tf1.setBounds(200,50,150,20);
        tf2.setBounds(200,80,150,20);
        lb4.setBounds(50,140,300,20);
        cb1.setBounds(50,170,300,20);
        cb2.setBounds(50,200,300,20);
        cb3.setBounds(50,230,300,20);
        cb4.setBounds(50,260,300,20);
        cb5.setBounds(50,290,300,20);
        btn.setBounds(150,320,100,20);
        ta.setBounds(50,350,300,200);
      
        //adding component
        add(lb1);
        add(lb2);
        add(lb3);
        add(c1);
        add(tf1);
        add(tf2);
        add(lb4);
        add(cb1);
        add(cb2);
        add(cb3);
        add(cb4);
        add(cb5);
        add(btn);
        add(ta);
    }
  
    //main method definition
    public static void main(String[] args) {
        //creating instance of class
        SummerCampGUI sc=new SummerCampGUI();
        //defining the size
        sc.setSize(400,600);
        //making the gui visible
        sc.setVisible(true);
        //option on closing the frame
        sc.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

    //coding the action of the button
    @Override
    public void actionPerformed(ActionEvent ae) {
        int total=0;
        //adding the details in text area
        ta.setText("Itinery details are as follows\n--------------------------------------\n\n");
        ta.append("Name: "+tf1.getText()+" ");
        ta.append(tf2.getText()+"\n");
        if(c1.getSelectedIndex()==1){
            total=total+895;
            ta.append(lb4.getText()+"\n");
        }
        else{
            total=total+695;
            ta.append(lb4.getText()+"\n");
        }
        if(cb1.isSelected()){
            total=total+25;
            ta.append(cb1.getText()+"\n");
        }
        if(cb2.isSelected()){
            total=total+295;
            ta.append(cb2.getText()+"\n");
        }
        if(cb3.isSelected()){
            total=total+145;
            ta.append(cb3.getText()+"\n");
        }
        if(cb4.isSelected()){
            total=total+115;
            ta.append(cb4.getText()+"\n");
        }
        if(cb5.isSelected()){
            total=total+245;
            ta.append(cb5.getText()+"\n");
        }
        ta.append("\nTotal: $"+total);
      
    }

    //coding the checkbox action
    @Override
    public void itemStateChanged(ItemEvent e) {
        String str=e.getItem().toString();
        if(str.equalsIgnoreCase("Single")){
            lb4.setText("Registration fees $895");
        }
        else if(str.equalsIgnoreCase("Multiple")){
            lb4.setText("Registration fees $695 ($200 discount)");
        }
        else{
            JOptionPane.showMessageDialog(this, "Please select registration type");
        }
    }
}

Output: