Question

Need helping developing code for this application

You are developing an application that needs to And the maximum or the minimum value of 3 numbers the user has typed in. The application will be a Graphical User Interface (GUI) that allows the user to type in 3 numbers and then she can select the Maximum button or the Minimum button to determine which to find. You are to develop the planning products for this application. Design the Interface Identify the controls on the interface along with their properties (i.e. names) Develop the flowchart for the logic behind the application ***Submit a word document with your solutions ***Pay special attention to the symbols you use in your flowchart (i.e. a diamond implies a decision is being made) ***Be sure to understand the problem you are trying to solve (i.e. have you considered faults)

Answer 1

PROGRAM CODE:

package GUI;

import java.awt.Container;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JOptionPane;

import javax.swing.JTextField;

public class MaxMinApplication {

   public static void main(String[] args) {

       //creating frame and adding components

       JFrame frame = new JFrame("Max-Min App");

       Container c = frame.getContentPane();

       c.setLayout(new GridLayout(5, 2));

      

       JTextField number1 = new JTextField();

       JTextField number2 = new JTextField();

       JTextField number3 = new JTextField();

       JTextField result = new JTextField();

       JButton min = new JButton("Minimum");

       JButton max = new JButton("Maximum");

      

       result.setEditable(false);

      

       c.add(new JLabel("Number 1: "));

       c.add(number1);

       c.add(new JLabel("Number 2: "));

       c.add(number2);

       c.add(new JLabel("Number 2: "));

       c.add(number3);

       c.add(new JLabel("Result: "));

       c.add(result);

       c.add(min);

       c.add(max);

      

       //finding the minimum value when the min button is pressed

       min.addActionListener(new ActionListener() {

          

           @Override

           public void actionPerformed(ActionEvent e) {

               int num1 = 0, num2 = 0, num3 = 0;

               try

               {

               num1 = Integer.parseInt(number1.getText());

               num2 = Integer.parseInt(number2.getText());

               num3 = Integer.parseInt(number3.getText());

               }catch (NumberFormatException e1) {

                   JOptionPane.showMessageDialog(null, "Invalid input");

               }

               catch (NullPointerException e2) {

                   JOptionPane.showMessageDialog(null, "Field is empty");

               }

               int minVal = 0;

               if(num1<num2)

               {

                   if(num1<num3)

                       minVal = num1;

                   else

                       minVal = num3;

               }

               else if(num2<num3)

                   minVal = num2;

               else minVal = num3;

               result.setText(String.valueOf(minVal));

           }

       });

      

       //finding the max value when the maximum button is pressed

       max.addActionListener(new ActionListener() {

                  

                   @Override

                   public void actionPerformed(ActionEvent e) {

                       int num1 = 0, num2 = 0, num3 = 0;

                       try

                       {

                       num1 = Integer.parseInt(number1.getText());

                       num2 = Integer.parseInt(number2.getText());

                       num3 = Integer.parseInt(number3.getText());

                       }catch (NumberFormatException e1) {

                           JOptionPane.showMessageDialog(null, "Invalid input");

                       }

                       catch (NullPointerException e2) {

                           JOptionPane.showMessageDialog(null, "Field is empty");

                       }

                       int maxVal = 0;

                       if(num1>num2)

                       {

                           if(num1>num3)

                               maxVal = num1;

                           else if(num3>num2)

                               maxVal = num3;

                       }

                       else if(num2>num3)

                           maxVal = num2;

                       else maxVal = num3;

                       result.setText(String.valueOf(maxVal));

                   }

               });

       //settings for the frame

       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

       frame.setVisible(true);

       frame.setSize(400, 600);

       frame.pack();

   }

}

OO Max-Min App Number 1 Number 2: Number 2: Result Minimum Maximum

cation.java 3 else minVal num3; result.setText(String.valueOf(minVal)); OOMax-Min App Number 1 Number2 Number 2 Result 23 //finding the max value when the maximum button is pressed max.addActionListener(new ActionListener 32 20verride publ Message Minimum Maximum Invalid input tO); tO) tO) "Invalid input"; OK "Field is empty"); int maxVal 0; if(num1>num2) if(num1>num3) maxVal num1 else if(num2>num3)

OMax-Min App Number 1 Number 2 Number 2 Result 23 12 32 12 Minimum Maximum

OMax-Min App Number 1 Number 2 Number 2 Result 1256 124 13 1256 Minimum Maximum