I've been looking for the past hour, but I haven't been able to find the solution I am looking for.
I'm wanting to take multiple inputs from the user using JOptionPane
, but I don't want them to all be in one dialog window. I'm wanting it to transition to the next or just make the next one pop up. Is there a way to do that using JOptionPane
?
Here's what I have so far:
import java.util.Scanner;
import javax.swing.*;
public class HomeWork2 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
Scanner input2 = new Scanner(System.in);
Scanner input3 = new Scanner(System.in);
Scanner input4 = new Scanner(System.in);
int days, assignments;
double temperature;
boolean isRaining;
JOptionPane.showInputDialog("How many days are left?");
days = input.nextInt();
JOptionPane.showInputDialog("How many assignments are due?");
assignments = input2.nextInt();
JOptionPane.showInputDialog("What is the temperature outside?");
temperature = input3.nextDouble();
JOptionPane.showInputDialog("Is it raining today?");
isRaining = input4.nextBoolean();
if(assignments<=0)
JOptionPane.showMessageDialog(null, "Why are you asking in the first place?");
else
if(days<5)
JOptionPane.showMessageDialog(null, "You need to hurry up, time is short.");
else
if(assignments>4)
JOptionPane.showMessageDialog(null, "You need to hurry up before the assignments pile up. Oh wait...");
else
if(temperature<50)
JOptionPane.showMessageDialog(null, "You should start working, it's not like it's warm eoungh to do anything.");
else
if(isRaining==true)
JOptionPane.showMessageDialog(null, "It's raining, you might as well start on your assignments.");
else
JOptionPane.showMessageDialog(null, "It's nice out and you have some time to spare, go have fun.");
input.close();
input2.close();
input3.close();
input4.close();
}
}
Apart from my above recommendations, here are some others that will be needed to understand the below code ( PLEASE READ THEM ALL BEFORE GOING FOR THE CODE PART ONLY )
Read what a layout manager is and how they work, especially take a look at Grid Layout and Box Layout , Google for examples and explanations if you don't understand the tutorial.
Read what methods are and how they work.
Read about the Event Dispatch Thread (EDT) and its function .
Be careful to not mix console application paradigm and GUI application paradigm. Use one or the other.
Learn How to use Dialogs
Read how to convert a String oa int and look how to convert to double
.
For your boolean
field I would use a JRadioButton
including a ButtonGroup
and how to get which radiobutton was selected in a buttongroup :
This code should give you a starting point on your way to finish it yourself
The annoyingGui
while shorter, is not my favorite since it opens a new dialog for the user each time you want to get an imput from them, which is annoying.
The singleDialogInformation()
displays a more complex GUI using a JPanel
and GridLayout
for requesting user information and a BoxLayout
to show it back to the user, note that I'm not using 2 different variables, but reassigning the pane
variable to a new instance of a JPanel
with a different layout.
import java.awt.GridLayout;
import javax.swing.BoxLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
public class UsingDialogsExample {
private JFrame frame;
private JPanel pane;
private JTextField daysField;
private JTextField assignmentField;
private int days = 0;
private int assignments = 0;
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
//Comment / uncomment one of them to see the output related to each sample method.
// new UsingDialogsExample().annoyingGui();
new UsingDialogsExample().singleDialogInformation();
}
});
}
public void annoyingGui() {
frame = new JFrame("My Frame's Title");
String daysInput = JOptionPane.showInputDialog(frame, "How many days are left?"); //Get user input on the textfield as a String
String assignmentsInput = JOptionPane.showInputDialog(frame, "How many assignments are due?");
try {
days = Integer.parseInt(daysInput); //Convert the string gotten above to an int
assignments = Integer.parseInt(assignmentsInput);
} catch (NumberFormatException nfe) {
nfe.printStackTrace();
}
JOptionPane.showMessageDialog(frame, "The number of days left is: " + days);
JOptionPane.showMessageDialog(frame, "The number of assignments due is: " + assignments);
}
public void singleDialogInformation() {
pane = new JPanel();
pane.setLayout(new GridLayout(0, 2, 2, 2));
daysField = new JTextField(5);
assignmentField = new JTextField(5);
pane.add(new JLabel("How many days are left?"));
pane.add(daysField);
pane.add(new JLabel("How many assignments are due?"));
pane.add(assignmentField);
int option = JOptionPane.showConfirmDialog(frame, pane, "Please fill all the fields", JOptionPane.YES_NO_OPTION, JOptionPane.INFORMATION_MESSAGE);
if (option == JOptionPane.YES_OPTION) {
String daysInput = daysField.getText();
String assignmentsInput = assignmentField.getText();
try {
days = Integer.parseInt(daysInput);
assignments = Integer.parseInt(assignmentsInput);
} catch (NumberFormatException nfe) {
nfe.printStackTrace();
}
pane = new JPanel();
pane.setLayout(new BoxLayout(pane, BoxLayout.PAGE_AXIS));
pane.add(new JLabel("Days left: " + days));
pane.add(new JLabel("Assignments due: " + assignments));
JOptionPane.showMessageDialog(frame, pane);
}
}
}
Screenshots of the annoyingGui
:
Screenshots of the singleDialogInformation
:
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