New Lines Don't Show Up In File But They Do Show Up On Console
Apr 30, 2015
I have the following code.
class A {
List<StringBuilder> list;
public void output(List<StringBuilder> objectToOutput){
try(BufferedWriter bw = new BufferedWriter(new FileWriter("temp.txt"))){
for(StringBuilder row:objectToOutput) bw.write(row.toString());
}catch(IOException e){}
[code]....
Why don't the a's show up on the console? I put them in as part of the debugging process and now I don't understand why they don't show up in both places.
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Mar 11, 2014
How do i make the 'date' column show only the date and 'timeIn' and 'timeOut' column only show the time. In my database table my 'date' column is a date type and 'timeIn' and 'timeOut' column is time.
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Jun 17, 2014
Here is my code so far,i have created a "birthdays.text" file with various peoples birthdays. How do I implement that into my code?
import java.io.File;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Scanner;
public class BirthdayBinarySearchTree {
private BSTnode root;
[code]....
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May 30, 2014
I have a problem about read text file in array and show it to textfield :
Content the file:
I want read line 1 to textfield 1, line 2 to textfield 2,....
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Dec 24, 2014
I had string url for image in mysql database and I want show image in mu jsp file bu I can't.
<c:forEach var="urun" items="${listUrun.rows}">
<tr>
<td><c:out value="${urun.kitapresim}" /></td>
<img src="<c:url value="${urun.kitapresim}" /> " width="270" height="190"/>
URL...
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Dec 3, 2014
I want to make app in netbeans. When i write numbers in JTextField like 1,2,3,4,5,6... it should show me in JOptionPane information window result of ODD numbers.
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May 8, 2015
I want my program to show 1st panel and when a person press image label 2nd panel showup which will have 2 tabs "oneway" and "round trip". But rightnow I only see 2nd panel with only 1 tab and don't see 1st panel at all.
import java.awt.*;
import static java.awt.Font.BOLD;
import java.awt.event.*;
import java.awt.event.*;
import java.awt.event.ActionListener;
import java.util.Calendar;
import java.util.GregorianCalendar;
import javax.swing.*;
import javax.swing.Timer;
import javax.swing.border.*;
import javax.swing.event.*;
[code]....
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Nov 25, 2014
This code models a simple ATM machine that can deposit, withdraw, and show the 10 latest transactions in an array of 10 index values.
My problem is that I can't get the balance right after 10 deposits, the balance only seems to sum the values in my array, not including the transactions made before those ten.
import java.util.Scanner;
public class cashier2 {
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
int amount = 0;
[Code] ....
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Aug 3, 2014
The PNG Image is already in the src package thingie...
It's a 400 * 258 image...
Java Code: package frame;
import java.awt.*;
import java.applet.Applet;
import java.awt.event.*;
public class Temperature_Convert extends Applet
implements AdjustmentListener {
private Image temp;
private Scrollbar bar;
[code]....
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Sep 25, 2014
I'm not sure what I'm doing wrong but none of the buttons will show below. I tried using .add with the container name but it kept giving me an error. When I just put add.(); it seems fine but then nothing shows. Is there something I'm missing that's required?
import java.awt.Container;
import java.awt.FlowLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
@SuppressWarnings("serial")
[code]....
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Aug 8, 2014
My code is already running. But the problem is, i don't want to see 0 denomination. like for example if i input 3.86 in (dollars).
dollars: 3
quarters: 3
dimes: 1
pennies: 1
so my problem is. it still showing 0 denomination like this:
dollars: 3
quarters: 3
dimes: 1
nickels: 0
pennies: 1
Currently using latest netbeans and if im correct we are using methods and class runner?.. Anyways here's the code..
for method:
package MyPrograms;
public class Mp3Method {
public int dollars(int dollars,int remainingAmount){
return dollars = remainingAmount / 100;
}
public int quarters(int quarters, int remainingAmount){
return quarters = remainingAmount / 25;
[Code] .....
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May 25, 2014
I have tried as much as I can to place code to give me only two decimals in answers but cannot get it to work not sure if placement or syntax.This is code so far and it works but gives answers to 8 decimals.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
</head>
[code]...
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Feb 20, 2014
How do I write a program that shows the max and the min value of a float integer? I found out that in order to get the long I just type in
System.out.println(Integer.MAX_VALUE); and System.out.println(Integer.MIN_VALUE);
I don't know how to do it to a float integer.
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Feb 11, 2014
I have to show a loading image which should tell some proper loading message in jsp.
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Apr 5, 2014
So Im making a game with a start screen followed by my game. I have a button centered but Im having a hard time displaying my label. Here's my code:
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JFrame;
public class TitleScreen extends JPanel implements ActionListener{
[Code] ....
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Apr 12, 2014
I have a tic tac toe game and when i run it it works and there are no errors. but the X's and O'x do not show in the board. I know the problem is in the "gameBoard" method and its cause i am telling the code to print the same board every time but i dont know how to do it the right way....
package chap7MDA;
import java.util.Scanner;
public class chapexe7we {
public static void main(String[] args) {
char[][] board = new char [3][3];//make a game board
gameBoard(board);// call the method game board to make the board
[Code] ....
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Mar 19, 2014
How can I display a modal dialog in JSF 2.0 without using any faces like primefaces, icefaces...
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Feb 27, 2014
I'm trying to display the data from database in a jtable by following the jtable demo example in Java Tutorials Sample Code; but, I couldn't output the data to the jtable. The following code is what I've done so far.
import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import java.util.ArrayList;
public class Patient { static String szJdbcURL = "jdbc:oracle:thin:@129.78.110.188:1521:MyDB";
static String szUser = "...";
static String szPasswd = "...";
static String szModelName = "...";
[Code] .....
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Feb 16, 2014
trying to get my image to show up on my compiled GUI.
Here is my GUI, I just need to know how to get the image to show, where do I save an image file so that it comes up in my GUI.
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.Vector;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
[code]...
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Apr 2, 2014
I am working on a keypad for a phone app for school. I cannot get the numbers from the keys to show up in the textField. I have made multiple tweaks, but think maybe my case statement is the problem?We did a calculator application in the class, so I have based my code off of that. Although the telephone keypad seemed much simpler to code, I can't seem to get the numbers to show up.
public void actionPerformed(ActionEvent e) {
//test for button clicks
foundKey = false;
//search for clicked key
for (int i=0; i<keys.length && !foundKey; i++)
[Code] ....
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Dec 20, 2014
I am trying to make movingLabel move to a different JPanel each time the JButton is clicked. I can see that the random integer is changing each time the button is clicked, but the movingLabel wasn't doing anything. I noticed that if I click the button and then resize the JFrame with my mouse, it shows in the correct panel. Is there something I am missing, or is there a way to make it automatically display in the correct panel without having to manually resize the JFrame each time? I was thinking that I could add something that resizes the window slightly each time the button is clicked to show it, but I don't think that is probably the "right" way to do it.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.Random;
public class JMovingFrame extends JFrame implements ActionListener
[code]...
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Oct 31, 2014
<rich:column>
<f:facet name="header">
<h:outputText
value="#{msgs.viewErrorSearchCriteria_createDateTime}" />
[Code] .....
Above code is always showing date as "31-Oct-2014 10:28:57 AM GMT". I want to display this in "31-Oct-2014 10:28:57 AM EDT".
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May 17, 2014
I want the text that the user inputs into the JTextField in the user input panel to be what shows up in the JTextField in the totals panel.
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Scanner;
import javax.swing.*;
import javax.swing.border.TitledBorder;
[Code] ......
I know that I will need to take advantage of the get and set methods, could I get an example of this? How to write the code.
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Dec 18, 2014
I'm trying to open an image within a JFrame but the image doesn't show. The directory path is correct. The JFrame opens perfectly but no image is showing.
JFrame frame = new JFrame("IMAGE");
frame.setSize(500,500);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
ImageIcon image = new ImageIcon("images/main.jpg");
JLabel label = new JLabel("", image, JLabel.CENTER);
JPanel panel = new JPanel(new BorderLayout());
panel.add( label, BorderLayout.CENTER );
frame.setVisible(true);
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Jun 5, 2014
I have a JSP which will let a user register for an account at my website. If the user submits wrong or illegal info into the JSP, then I want to return the same JSP with an appropriate error message next to/above each wrongly filled (form) fields.
If possible, highlight the wrongly filled form field - this feature is not necessary though.
I have given a sample below to show what I need. I understand that the sample must be using something like javascript, but I don't know all that client side scripting. I only want to use JSP to do it. As I said, I want to sort of return the JSP form to the user after marking all the mistakes and how to correct them.
How do I do this ?
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Mar 13, 2014
I am still working on my java course and now we have to create a jar file from a previous project (this is a project where a connection to the database is made and data is shown in a frame).
When I follow the instruction in my course material I don't get it to work. I've tried the following:
1. Open eclipse on windows xp
2. Right click on the project folder in eclipse
3. Click on "export" in the menu that appears
4. Choose "runnable jar"
5. click next
6. I insert the following parameters:
- Launch configuration --> I select my main class
- export destination --> I select the folder D:
- library handling --> Package required libraries into generated jar
7. click Finish
This is what happens when I dbl click the jarfile (wampserver is running):
1. I get an error: "SQL ERROR: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server."
2. I click ok on the message and the following message appears: "SQL Error: null"
3. I click ok on this message and the frame with the fields appears without data from the database.
This is a crosspost to: [URL] ...
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