After opening a file dialog box and choosing a file and the path to that file is placed ina jTextField, How can I surround that text with quotes, if that path contains spaces? This is how I did it in VB.
Function WrapIfRequired(ByVal Filename As String) As String Dim containsSpaces As Boolean = False Dim FilePath As String = Filename.Trim If FilePath.Contains(" ") Then containsSpaces = True If containsSpaces = True Then Return """" & FilePath & """" Else Return FilePath End If
I want to add a Refresh button to my frame to refresh the data from the database, but I'm not sure how to refresh the data in the jtable. The constructor below initially creates the table and displays the data. Should my button destroy/create the JPanel all over, or is there a single method within the TableModel that will redisplay the data?
I have been trying to learn a bit about JTables for a project I want to undertake. I have created a new JFrame in netbeans and added a button. Onclicking the button I want add some data to a JTable model and then output the JTable with the data. When I click the button again I want the same process to happen again and overwrite the previous table being displayed.
The problem I have is that when I click the button for a second time the table stays on the screen exactly as it did following the first click. I can see that the data in the model is changing so I am not sure why a new JTable is not drawn.
Using JSF framework. when you select one drop down value and click on refresh before submit the initial value got selected in chrome and IE .
But getting issue in firefox. The initial value is not populating.With the text box also the same issue. when we enter something and refresh before submit values are not refreshing in Firefox
I have an application that displays a GUI and this GUI displays a table with several columns and rows. I have a class that extends DefaultTableModel. I wrote the code that displays the GUI. When the database table changes, how would I updated the GUI dynamically? Do you have any sample code that does that?
my output fails to display me the 2nd output.Here's my code.
import java.util.Scanner; public class year { public static void main (String [] args) { Scanner console = new Scanner (System.in); System.out.print("Enter the choice of book(A-ABC,D-EFG):"); String x = console.next(); System.out.print("Enter the rate (1-3):"); int y= console.nextInt(); System.out.print("Enter number of kids reading:"); int k = console.nextInt();
[code]....
When I key '0" for kids, it did not appear the second print out. I don't want the first print out to be the output.
import java.util.Scanner; class LeftBottomTriangleNew2 { public static void main(String[] args)
[Code]....
the staircase looks good,however I want to remove the last line and if user chooses 9 i want them to get message "enter number from 1 to 8" and do not print out the staircase.
I have been working through a problem, and I have working what I need to work. However, it prints out to the command line and I want to output to a GUI. I have set up the GUI and everything seems fine there, the problem is when I try to change the output that was coming through the command prompt to a JTextField. I am getting the following error.
The field DataAnalyzerGUI.dataOutput is not visible
I am writing this program for my Java level 1 class. I am able to get it to compile and run, however nothing is outputted. Below are the instructions and the code that I have written.
Instructions:
Write an application that calculates and displays the amount of money a user would have if his or her money could be invested at 5 percent interest for one year. Create a method that prompts the user for the starting value of the investment and returns it to the calling program. Call a separate method to do the calculation, and return the result to be displayed.
Below is the code that I have written
import java.util.Scanner; public class Interest { //main method public static void main(String[] args) { originalAmount(); Scanner input = new Scanner(System.in);
You are given a file containing the names and addresses of company employees from many years ago that your manager has asked you to import into a database. You can use a CSV file and your database application to load the file, but the file your manager gave you was exported from an old, non-standard accounting system. Here is its format:
I'm not sure why, but my program does not produce an output. It is supposed to output total charges.
/*This program provides the user with the price of their monthly internet service based on two inputs.The program asks users which subscription they have. The options are A, B, or C. This is the first input.
The program then will ask the user how many hours they used the internet for. This is the second input.Then, based on the package number, the program will compute their monthly bill. This is the output.
The program calculates the price based on the following prices:
Package A: For $9.95 per month, 10 hours of access are provided. Additional hours are $2.00 per hour. Package B: For $13.95 per month, 20 hours of access are provided. Additional hours are $1.00 per hour. Package C: For $19.95 per month, access is unlimited.*/ import java.util.Scanner; public class Lab03SV
I am learning while loops but the output I am getting is not what I want? My class:
public class BottlesOnWall { public static void main (String[] args) { int x = 99; while (x > 1) { System.out.println(x + " bottles on the wall!");
[Code] .....
The output I am getting is this:
99 bottles on the wall! 98 bottles on the wall! 97 bottles on the wall! 96 bottles on the wall! 95 bottles on the wall!
[Code] ....
I want it to stop on "2 bottles on the wall!" and then print "Only 1 bottle left on the wall!". How do I go about doing that? I have tried different variations of the condition (x>1), I have tried (x>5) but it still goes down to 1 bottle?
It has been about 2 years that I'm programming in JAVA and never has this occurred to me about the reason why this happens. So, in this code snippet
public class Test { public static void main(String[] args) { char m = 'A'; int p = 15; System.out.println(m+p); System.out.println("Answer :"+m+p); } }
The statement "System.out.println(m+p);" returns "80" which is evident that the type of the entire expression is promoted to the value of the largest data type int. But in the statement " System.out.println("Answer :"+m+p);, why does the output change to "Answer :A15" but not "Answer :80"?
I need to display my calculations in a table format using loops.
//Imports import java.util.*; import java.text.*; public class YourLoanCalculator {
[code]....
The increments are correct, but I wanted them listed under the "Payment #:" column. I figure that if I do that, I can also correctly display the interest, principal, unpaid balance and total interest paid at that point, right?
I would like to enter a new item into a CSV file but all my items being entered are all staying on one line in the CSV file. I would like each new item to show up on a new line and I can't seem to find the code to make it work.
public String addItem(String newItem, int credits, String code) { String money = Integer.toString(credits); try { BufferedReader itemsCSV = new BufferedReader(new FileReader("itemList.csv"));
I have a for cycle in which I have a line for printing in the output file. But the file remains empty.
I inserted ShowMessageDialog in the same cycle in order to see what are the results of the calculations that are supposed to appear in the output file, and I see that the results are fine.
[URL] I am unable to get any XML output. I am unable to figure out how to send the contents of System.out to a String that can be printed. I saw an SO post and tried using ByteOutputStreamArray, but that did not work.
How can I extract data from two different files but produce one output. For example, the first three columns are from text_file_1 and the last column (the last foruth column of the output) is from text_file_2...
I am working on a program that accept input file from user and then from the input file, it count the occurrence for each words then put those result into the output. However, after I run this program, nothing shows up in the output file. It is totally empty...It seems nothing wrong with my code... Here is my code
import java.util.*; import java.io.*; public class occurance { public static void main(String[] args){ String inputFileName=""; String outputFileName=""; if(args.length == 0){
I have one code [taking from on line SCJP exam preparation site]. I have 2 question in my mind:
1) addValue() is non static method then why it is running without object inside constructor. By this rule it should show compilation error. 2) With ref variable of parent always non overridden methods of parent run then it must value of 10 [If i forgot 1st point ]
But it is giving 40. Code is as below:
class Base{ int value = 0; Base(){ addValue(); } void addValue(){ value += 10;
