David Coello

Hello Forum Members, thank you for looking at my project.

I am in the process of creating a GUI for a customer order of plastic bags. I am aiming for a final presentation of a gui I am including in the attachment.

I have a list field but need to change to a text field where I want to display the results of the customer selection when the View Order button is pressed. I also have a Cancel button and want to bring all fields to no option being selected.

I appreciate your help, as I am having difficulty integrating the text field into the frame and also how to put the results into de text field. Thank you.

My code so far is:


import java.awt.*; import java.awt.event.*; public class Orderpo extends Frame implements ActionListener { private Button view = new Button("View Order"); private Button cancel = new Button("Cancel"); Choice bagtypeInput; Choice sizeInput; Choice boxInput; private List list = new List(); private TextField vieworderInput = new TextField(40); private Label splasticsLabel = new Label("Star Plastics"); private Label btypeLabel = new Label(" Bag Type"); private Label sizeLabel = new Label("Size"); private Label boxLabel = new Label("Box with"); private class WindowCloser extends WindowAdapter { public void windowClosing(WindowEvent we) { System.exit(0); } } public Orderpo() { /* constructor to define layout and activate buttons */ super("Starlite Plastics Customer Order"); setup(); view.addActionListener(this); cancel.addActionListener(this); addWindowListener(new WindowCloser()); pack(); show(); } public void actionPerformed(ActionEvent ae) { /* reacts to button clicks */ } public static void main(String args[]) { Orderpo opo = new Orderpo(); } private void setup() { bagtypeInput = new Choice(); bagtypeInput.addItem("Trash"); bagtypeInput.addItem("Clear"); bagtypeInput.addItem("T-Shirt"); bagtypeInput.addItem("Starseal"); sizeInput = new Choice(); sizeInput.addItem("Canliner"); sizeInput.addItem("Small"); sizeInput.addItem("Medium"); sizeInput.addItem("Jumbo"); boxInput = new Choice(); boxInput.addItem("100"); boxInput.addItem("150"); boxInput.addItem("200"); boxInput.addItem("250"); Panel buttons = new Panel(); buttons.setLayout(new FlowLayout()); buttons.add(view); buttons.add(cancel); Panel title = new Panel(); title.setLayout(new FlowLayout()); title.add(splasticsLabel); Panel vieworder = new Panel(); vieworder.setLayout(new FlowLayout()); vieworder.add(vieworderInput); Panel options = new Panel(); options.setLayout(new GridLayout(1,1)); options.add(btypeLabel); options.add(sizeLabel); options.add(boxLabel); Panel bags = new Panel(); bags.setLayout(new GridLayout(1,1)); bags.add(bagtypeInput); bags.add(sizeInput); bags.add(boxInput); Panel top1 = new Panel(); top1.setLayout(new BorderLayout()); top1.add("North", title); top1.add("South", options); Panel top2 = new Panel(); top2.setLayout(new BorderLayout()); top2.add("North", top1); top2.add("South", bags); setLayout(new BorderLayout()); add("Center", list); add("South", buttons); add("North", top2); } }

Hi, well I thought of another quick question. When I run the applet on Eclipse, the labels are all over the applet.

1.- Is there a way to organize the applet contents, like in columns or rows.
2. Is there a way to move the second part of the applet. (name, gender, age, etc.), I would like to move it down a little to make more room for the labels.

Your help is really appreciated.

Thank you.

David

Thank you so much Paul and Naishadh for your help; I actually played around with the code before posting for help and almost got to that same code, but this worked perfect, thank you I appreciate it!!

Hello forum members,

I am currently working on an applet and need to include a clear or reset button and have researched with no solution found. I want to reset the name text field to be blank and ready to receive a new name.

Any help is appreciated. Thank you.

My code as follows:

import java.applet.*; import java.awt.*; import java.awt.event.*; public class Culinaryapp extends Applet implements ActionListener { Label nameLabel; Label genderLabel; Label ageLabel; Label highesteducationLabel; Label degreeselectLabel; Label skilllevelLabel; Label whenstartLabel; TextField nameInput; Button submit; Button clear; Choice ageInput; Choice highesteducationInput; Choice degreeselectInput; Choice whenstartInput; CheckboxGroup genderInput; CheckboxGroup skilllevelInput; String name; String gender; String age; String highesteducation; String degreeselect; String skilllevel; String whenstart; public void init() { setSize(600, 400); nameLabel = new Label ("Enter your name: "); genderLabel = new Label ("Select your gender: "); ageLabel = new Label ("Select your age: "); highesteducationLabel = new Label ("Select your highest education: "); degreeselectLabel = new Label ("Select the degree you wish to pursue: "); skilllevelLabel = new Label ("Select your skill level in the culinary field: "); whenstartLabel = new Label ("Select how soon you are able to start: "); nameInput = new TextField(10); submit = new Button("Submit"); clear = new Button("Clear"); genderInput = new CheckboxGroup(); skilllevelInput = new CheckboxGroup(); ageInput = new Choice(); ageInput.addItem("15"); ageInput.addItem("16"); ageInput.addItem("17"); ageInput.addItem("18"); ageInput.addItem("19"); ageInput.addItem("20"); ageInput.addItem("21"); ageInput.addItem("21 - 25"); ageInput.addItem("26 - 30"); ageInput.addItem("31 to 40"); ageInput.addItem("41 to 50"); ageInput.addItem("50 and older"); highesteducationInput = new Choice(); highesteducationInput.addItem("GED"); highesteducationInput.addItem("High School"); highesteducationInput.addItem("Some College"); highesteducationInput.addItem("Associate Degree"); highesteducationInput.addItem("College Degree"); highesteducationInput.addItem("Post-Graduate Degree"); degreeselectInput = new Choice(); degreeselectInput.addItem(" Le Cordon Bleu Culinary Arts"); degreeselectInput.addItem("Patisserie and Baking"); whenstartInput = new Choice(); whenstartInput.addItem("1 Week"); whenstartInput.addItem("1 Month"); whenstartInput.addItem("3 Months"); whenstartInput.addItem("6 Months"); whenstartInput.addItem("more than 6 Months"); add(nameLabel); add(nameInput); add(genderLabel); add(new Checkbox ("Male", genderInput, true)); add(new Checkbox ("Female", genderInput, false)); add(ageLabel); add(ageInput); add(highesteducationLabel); add(highesteducationInput); add(degreeselectLabel); add(degreeselectInput); add(skilllevelLabel); add(new Checkbox ("Begginer", skilllevelInput, true)); add(new Checkbox ("Advanced", skilllevelInput, false)); add(whenstartLabel); add(whenstartInput); add(submit); submit.addActionListener(this); add(clear); clear.addActionListener(this); } public void paint(Graphics g) { g.drawString("Name: " + name, 10, 150); g.drawString("Gender: " + gender, 10, 180); g.drawString("Age: " + age, 10, 210); g.drawString("Highest Education: " + highesteducation, 10, 240); g.drawString("Preferred Degree: " + degreeselect, 10, 270); g.drawString("Skill Level: " + skilllevel, 10, 300); g.drawString("Start Time: " + whenstart, 10, 330); } public void actionPerformed(ActionEvent e) { name = nameInput.getText(); gender = genderInput.getSelectedCheckbox().getLabel(); age = ageInput.getSelectedItem(); highesteducation = highesteducationInput.getSelectedItem(); degreeselect = degreeselectInput.getSelectedItem(); skilllevel = skilllevelInput.getSelectedCheckbox().getLabel(); whenstart = whenstartInput.getSelectedItem(); if (e.getSource() == clear) { } repaint(); } }

Hello,

I am building a chatterbot for a school project and am looking for a way to do the following:

1. Match any word from the inputline with a string in an array.

If someone types "Hello stranger", I want to find the array string that says "Hello". If a match is found, I want to reply "Greetings".
If then someone types "How are you today", I want to find the array string that says "you today". If a match is found, I want to reply "Great".

And try to create a conversation going.

I am not sure if to use a match regex function or contains function.

This is my code:



import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.regex.Matcher; import java.util.regex.Pattern; import java.util.regex.*; public class Get { public static void main(String args[]) throws IOException { while(true) { System.out.print(">"); BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); String inputline = in.readLine(); Pattern p = Pattern.compile(inputline); String candidateString = "Hello Good Morning"; Matcher m = p.matcher(candidateString); if (m.find()) { System.out.println("Hi"); } if (m.find() == false) { String candidateString1 = "location, area"; Matcher m1 = p.matcher(candidateString1); if (m1.find()) { System.out.println("Dallas"); } } } } }

Thanks so much for your feedback.

David

Hello,

I am a new Java Developer. I am currently working on a Chatbot for school and so far I have created 2 main segments. First, I have the chatbot working at least ready for input and with 2 possible replies. The assignment requires me to have the conversation oriented towards a job interview, so I wrote the following:

{"Hi", "How are you doing", "How are you", "Hello" }, {"How are you", "I am okay and you?", "I´m doing fine", "How are you today?" }, {"What is your name", "My name is Mr. Hunt", "I am the Regional Manager.", "Why do you want to know?" }, {"Where is this job located?", "The area is Hollywood, CA.", "Work at our top salon in Hollywood, CA", "Hollywood!" }, {"What is this job about", "A job as a Hair Stylist.", "A great work opportunity", "Smart choice with great income potential." },

I would like the database to be integrated with the main program and when the user enters a keyword like "job", or "hello", to retrieve and present that containing phrase from the database. I know I need some kind of array, a match or search and match, and a random function to choose an a reply.

My main statement:

import java.io.*; import java.util.*; public class startChat { public static void main (String[] args) throws IOException { String comline = ""; while(true) { System.out.print(">"); BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); String inputline = in.readLine(); if(inputline.equalsIgnoreCase("Good Bye")) { System.out.println("See you in the second round for interviews."); } else { System.out.println("I might not understand what you are talking about."); } } } }


Any help or guidance is greatly appreciated.

David

Wow, thank you so much for both explanations. I have seen some tutorials online to create GUI's using Netbeans and the way that a GUI is created from a visual standpoint is easier to understand and position text boxes for example.

I'll give it a try to at least see how it feels to work with these tools, but definitely understand the value of programming from the command line and I actually find it both interesting and challenging. Thank you.

Hello forum members,

I am a new java developer. I have been working on a Converter from Farenheit to Celsius with the push of a button. I programmed it under those specs, but I would like to program that same button to convert back to celsius. I appreciate your comments, basically if a button can perform 2 actions, convert from Fahrenheit to Celsius and Celsius to Farenheit.


Thank you.

David

import java.awt.*; import java.awt.event.*; public class TempConverter { public static void main(String[] args) { Frame frame = new TempConverterFrame("Temperature Converter"); frame.setSize(167, 115); frame.setVisible(true); } } class TempConverterFrame extends Frame { private TextField fahrenField = new TextField(); private TextField celsiusField = new TextField(); public TempConverterFrame(String title) { super(title); Panel top = new Panel(new GridLayout(2, 2)); top.add(new Label("Fahrenheit")); top.add(fahrenField); top.add(new Label("Celsius")); top.add(celsiusField); add("Center", top); Panel bottom = new Panel(); Button b = new Button("Convert"); b.addActionListener(new ConvertListener()); bottom.add(b); add("South", bottom); addWindowListener(new WindowCloser()); } class ConvertListener implements ActionListener { public void actionPerformed(ActionEvent evt) { String fahrenheitString = fahrenField.getText(); double fahrenheit = Double.valueOf(fahrenheitString); double celsius = (fahrenheit - 32.0) * 5.0 / 9.0; celsius = Math.rint(celsius * 100.0) / 100.0; celsiusField.setText(celsius + ""); } } class WindowCloser extends WindowAdapter { public void windowClosing(WindowEvent evt) { System.exit(0); } } }

Hello forum members,

I am a new Java developer and have seen tutorials where the programmers use the NetBeans IDE and this program looks like a great tool to both write the code, compile and it has a user nice GUI.

I would appreciate your comments as to where to download this program and main uses of the program. and if this tool can be used to create all java programs.

I look forward to your comments.

Thank you.

David

Thanks Buenny, I also found a nice tutorial and it has some examples.

http://java.sun.com/developer/onlineTraining/awt/contents.html#AWTTextArea

I found this helpful.

Greetings,

David

Hello forum members,

I am a new Java developer and am learning about AWT to work on a class assignment for a Fahrenheit to Celsius temperature converter.

I found the following tutorial about AWT http://www.ged.fi/DesignPatterns/, and would appreciate your suggestions about any good tutorials for AWT that can break down on how to create a user interface.

Thank you.

David

Hello Buenny, Jack, Steve and thank you for your suggestions.

I started to implement the Scanner.hasNextDouble() method. I used a while loop to check if not doubles; used it 2 times, first to check the amount due and then to check the amount tender.

It seems that there are some issues with my code, as when I run the program it asks for the amount due, I enter a number, and then it does nothing, until I enter a second number. It looks like the while loop takes the second entry to check if it is a double. I suspect the same with the second while loop.

Also, in the even when a non double is entered, I would need to store a new amount due / tender and display it, and use it to calculate the change to the customer. I am confused, since a new amount due would have to go down a paralell path as the original code to calculate change, maybe using an if (newamountdue == null) to see if a new amount due was entered.

Or just assign the new value to the same "due" double, I don´t know if that can be achieved, I´ve tried and says a value to the variable due is already assigned.

I look forward to your comments and thanks in advance.

David

import java.util.Scanner; import java.lang.Math; import java.util.*; import java.text.NumberFormat; import java.util.Scanner; public class Change { public static void main (String[] args) { double due, tender, remainder, number; Scanner scan = new Scanner ( System.in ); NumberFormat fmt1 = NumberFormat.getCurrencyInstance(); System.out.println( "Enter the amount due: " ); due = scan.nextDouble(); while ( scan.hasNextDouble() == false) { System.out.println( "Please enter the amount due in number format: " ); scan.next(); } System.out.println( "Amount due: " + fmt1.format (due)); System.out.println( "Enter the amount tender: " ); tender = scan.nextDouble(); while ( scan.hasNextDouble() == false) { System.out.println( "Please enter the amount tender in number format: " ); scan.next(); } System.out.println( "Amount tender: " + fmt1.format (tender)); while (due > tender) { System.out.println( "Enter new amount tender: "); tender = scan.nextDouble(); System.out.println( "Amount tender: " + fmt1.format (tender)); } remainder = ((tender - due) * 100); double newremainder = Math.round(remainder*100) / 100; System.out.println( "Your change is: " + fmt1.format (remainder / 100)); int dollars = (int)remainder / 100; int coins =(int)newremainder % 100; if (dollars >= 1) { System.out.println("dollars: " + dollars); } while (coins > 0) { if (coins >= 25) { int prequarters = coins / 25; int quarters = prequarters - (((prequarters * 100) % 100) / 100); System.out.println("quarters: " + quarters); coins = coins -(quarters * 25); } else if (coins >= 10) { int predimes = coins / 10; int dimes = predimes - (((predimes * 100) % 100) / 100); System.out.println("dimes: " + dimes); coins = coins - (dimes * 10); } else if (coins >= 5) { int prenickles = coins / 5; int nickles = prenickles - (((prenickles * 100) % 100) / 100); System.out.println("nickles: " + nickles); coins = coins - (nickles * 5); } else if (coins >= 1) { int pennies = coins; System.out.println("pennies: " + pennies); coins = coins - (pennies * 1); } } } }

Hello forum members, I am currently working on a class assignment to display change for a simulated purchase.

I have a working program that displays dollars, quarters, dimes, nickles and pennies.

There is a needed feature, to identify non-numeric characters and I am lost as to how to achieve this.

So far, if when asked for amount due, if I put in letters, I get the following:
java.util.mismatchexception

Is there a specific code or check I can do to identify letters are entered and to say "please input numbers only".

My code is as follows:

import java.util.Scanner; import java.lang.Math; import java.util.*; import java.text.NumberFormat; import java.util.Scanner; [code=java]public class Change { public static void main (String[] args) { double due, tender, remainder; Scanner scan = new Scanner ( System.in ); NumberFormat fmt1 = NumberFormat.getCurrencyInstance(); System.out.println( "Enter the amount due: " ); due = scan.nextDouble(); System.out.println( "Amount due: " + fmt1.format (due)); System.out.println( "Enter the amount tender: " ); tender = scan.nextDouble(); System.out.println( "Amount tender: " + fmt1.format (tender)); while (due > tender) { System.out.println( "Enter new amount tender: "); tender = scan.nextDouble(); System.out.println( "Amount tender: " + fmt1.format (tender)); } remainder = ((tender - due) * 100); double newremainder = Math.round(remainder*100) / 100; System.out.println( "Your change is: " + fmt1.format (remainder / 100)); int dollars = (int)remainder / 100; int coins =(int)newremainder % 100; if (dollars >= 1) { System.out.println("dollars: " + dollars); } while (coins > 0) { if (coins >= 25) { int prequarters = coins / 25; int quarters = prequarters - (((prequarters * 100) % 100) / 100); System.out.println("quarters: " + quarters); coins = coins -(quarters * 25); } else if (coins >= 10) { int predimes = coins / 10; int dimes = predimes - (((predimes * 100) % 100) / 100); System.out.println("dimes: " + dimes); coins = coins - (dimes * 10); } else if (coins >= 5) { int prenickles = coins / 5; int nickles = prenickles - (((prenickles * 100) % 100) / 100); System.out.println("nickles: " + nickles); coins = coins - (nickles * 5); } else if (coins >= 1) { int pennies = coins; System.out.println("pennies: " + pennies); coins = coins - (pennies * 1); } } } } [/code]

Hi Junilu, so to understand, basically what you are saying is define what tasks need to be completed, then create individual methods for each task? I also need to practice adding comments while creating the code, do you recommend that?

Thank you,

David

Hi Fred, should I be using Dreamweaver to achieve the code tags with their corresponding color? They definitely stand out and look like a big help while creating the program.

Thanks!!

David