I have a program that using one JFrame which opens one of two JDialog windows depending on which button is pressed.
How do I assign listeners to the buttons and fields on the JDialog window? I added listeners on the View end, but how do I process them? I tried adding the '..implements ActionListener" class in the main Controller but it does not recognize/hear anything.
How can I remove the ActionListener from the buttons of my application after i have got something happen.
Please consider the following application:
Java Code:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Exer1218659 extends JFrame {
private String[] textButtons;
private Container contents;
[Code] .....
After the line 37 executes I expect that the ActionHandler (ah) will be removed from all of the buttons but this do not happen, then all the remaining button still responding to the clicks. Where is the problem in my code.
My task is to make a BorderLayout and when clicking a button it should say "Going Right!", "Going Up!" etc but I don't know how to create that:
Java Code:
import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JLabel;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
[code]....
how to differ between fields that are not exists to fields that are null? because in my api when someone wants to delete a field he sends null instead of a value. and if he doesnt want to effect this feild he doesnt send it.
{
"a" : {"1","2"},
"b" : "hello"
}
{
"a" : null,
"b" : "hello"
}
{
"b" : "hello"
}
while (gamesPlayed<gameQty) {
userChoice = JOptionPane.showInputDialog("Rock, Paper, or Scissors?");
//Determine winner for each game
if (compChoice.equalsIgnoreCase(userChoice));
[Code] ....
It seems to circle through the loop gameQty times, without comparing.
What is happening in below mentioned java code. Why in method insert, int l, int w is declaring & it is assigning to length & width.
class Rectangle{
int length;
int width;
void insert(int l,int w){
length=l;
width=w;
[Code] ....
I'm making a card game and have a class I used to assign all my card variables.
However, it's giving me multiple errors and I can't seem to be able to access the variables from my other classes.
Java Code:
package com.summoners.Screen;
class Cards {
public static String[] names;
name = new String[1000];
atk = new int[1000];
[Code] .....
In my JSP I need to retrieve some data from MySQL. I need to assign a "email" variable to the "WHERE" clause. The variable is retrieved from the session attribute. So far, I have this code:
<sql:query dataSource="${user}" var="result">
SELECT * from users where email = ${sessionScope.email};
</sql:query>
It doesn't work.
import java.util.Scanner;
public class Try{
static String name;
static int age;
static Scanner a = new Scanner(System.in);
static Scanner b = new Scanner(System.in);
static Scanner c = new Scanner(System.in);
public Try(String name, int age){
[Code] ....
I was trying to make a program that asks the user to create a person or a group of persons and assign names and age to them. So I made a constractor "Try" and a method "AskUser".in AskUser() I use a do/while loop where user is asked to input a name, an age and if he likes to create another person. Now how do I take the input data each time the loop runs, and send it to constractor to create new objects with it? And how these new objects will be called?
I am able to get output from my constructor when I place a loop inside of it. However when I try to access the private variable that I thought was set by the constructor I get nothing. When I check its size it is zero as well.
Java Code:
public class WinningHand extends PokerCalculator {
private int p1Size;
private int p2Size;
private String[] p1Hand = new String[p1Size];
private String[] p2Hand = new String[p2Size];
[Code] ....
We are asked to create a JDialog showing our database. I am able to show the database but i can't seem to position the heading panel, table and back button. My back button is also not showing up. Here is part of my code...
import java.awt.Color;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.sql.*;
import javax.swing.*;
[Code] ....
All the samples I found use JOptionPane to return a single value. I am looking to return two values from two Text fields.
View Replies View Relatedhow the entire application could be close when you click on X in a JDialog Box. I have tried
System.Exit (0)
but it only close the Dialog box
This is my code:
JDialog dialog = new JDialog();
dialog.setSize(400, 150);
dialog.setTitle("Input dialog");
dialog.add( new JLabel("simtime(min)") );
dialog.add( new JLabel("interval(sec)") );
dialog.setVisible(true);
The problem is that the two lables replace each other.How to position them where we want?
JFrame frame = new JFrame();
frame.setIcon("aaa.ico");
JDilaog dialog = new JDialg(frame, "dialog" , true);
so the dialog has its owner frame, which is neccessary but i want the dialog has another icon ,or remove the icon on the dialog how may i do ?
I have been asked to write a library program that will keep record of books and the year it was published. The program should ask the user how many rows he wants accept the string input from the user and display them in rows and columns. This is how i code it
package multidimension;
import java.util.Scanner;
public class bookrecords {
public static void main(String[]args){
//declaring a scanner variable
Scanner input =new Scanner(System.in);
[code]....
I have a txtfile which I read and go through. My question is what are the ways I could do to read a txtfile of words and assign an empty score to each of the word in it. So each word will have a 0 value. Later on I will manipulate the score but for now I want each word to have a 0 score.What I have at the moment is reading a text file full of words eg:
private void readtextfile() {
try {
Scanner rd = new Scanner(
new File("filename"));
List<String> lines = new ArrayList<String>();
while (sc.hasNextLine()) {
lines.add(sc.nextLine());
[code]...
how to make each of the words to have a score of zero 0?
If you write
byte b = 100; it works (implicit conversion of implicit int literal 100 to byte.
But if you have a methodvoid bla(byte b){}
And want to invoke it with a literal (which is an int by default):bla(8) then there is no implicit conversion.
Is the byte b = 100; just an exception in Java? And is it the rule that one has to explicitely cast (narrow) integer literals when passing to smaller-than-int types?
I am looping through data in Android, using Parse data. I came up with this as a way to get user information; the larger goal is to create a model of data that I can use in an array adapter, so I can create a custom list view (as described here [URL] .... In the example, the data are hard-coded, not pulled from a database.
public static ArrayList<Midwifefirm> getUsers() {
//Parse data to get users
ParseQuery<ParseUser> query = ParseUser.getQuery();
query.orderByAscending(ParseConstants.KEY_PRACTICE_NAME);
query.findInBackground(new FindCallback<ParseUser>() {
[Code] ....
The intention is that for every user that does not have the type patient, collect this data about them, then store it in the arrayList.
On the return statement, though, there is an error: cannot return a value from a method with a void return type.
I may be over complicating this...read through various sources to get a model for this...in the end, I want to display a list of information about specific users, after the user makes a selection of a city...it would therefore display all the information about the medical practices in that city.
Lets say the JDialog opens 5x5. The user is allowed to modify its size to be any size larger than 5x5 but is not allowed to make it smaller. Is there such a property or will this have to be regulated via code?
View Replies View RelatedI have a practice exercise here wherein I will add a JOptionPane to a program. When the close button is clicked, the JOptionPane will appear asking the user to exit the program. If the user clicks "Yes," it'll, of course, close the entire program and not just the JOptionPane, but if the user clicks "No," it will return to the program. Please refer to my code below:
try
{
output = new DataOutputStream(new FileOutputStream("ProjSixExe4.dat"));
}
catch(IOException ex) {
this.dispatchEvent(new WindowEvent(this, WindowEvent.WINDOW_CLOSING))
}
final JOptionPane optionpane = new JOptionPane("Are you sure you want to quit
this program?", JOptionPane.QUESTION_MESSAGE, JOptionPane.YES_NO_OPTION);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
The exercise said it must be placed before the EXIT_ON_CLOSE portion.
I have JFrame and when I click a button which is in frame JDialog is opened. Now,how can I refresh JFrame when close JDoalog?
View Replies View RelatedThis code will not dismiss the MemoryDateDialog when it loses focus, while it is what it is intended to do.
btnMemoryReason.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
List<MemoryDates> lMemoryDates = db.getMemoryDates(custID);
final MemoryDateDialog mdd = new MemoryDateDialog(lMemoryDates);
[URL] .....
I show a JDialog window and this window has 3 buttons when I press one of them it should close the window, how do I do that?
View Replies View RelatedWith the MigLayout for Swing, I'd like to see the JDialog looking like the standard windows Dialog,where to have the OK and cancel buttons at the lower right corner.
View Replies View RelatedI have an requirement of splitting a Date-Time String i.e. 2013/07/26 07:05:36 As you observe the above string has Date and Time with space in between them.
Now I want just want split the string not by delimiter but by length i.e. after 10th place and then assign it to 2 variable i.e. Date <----2013/07/26 and Time <---07:05:36 separately.