35,619 Topics
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| | Hello, I have been having quite a bit of trouble with this one. Can someone please tell me how many swaps it would require to sort the following array? {2, 4, 6, 3, 7, 1} I tried putting my counter in a couple of places and neither one of them … |
 | Hey guys im populating a combo box from my database i was just wondering how do i prevent the combo box from displaying different instances of the same value. e.g three B&Bs all from ennis. ennis is in the combobox but its displayed three times. how do i stop this …  |
| | Hi Guys I was just wondering how you stop the combo box from displaying different instances of the same value. In the combo box i have villages and towns names e.g doolin. onli thing is i have many businesses from doolin on the database so when i pull the town … |
| | trying to make a table tennis game. simple one with two paddles and one ball. so i have two paddel which is a long rectenger. and a ball. ball i have set x+=dx y+=dy this code above will let the ball keep on going right and down. if ball hit …  |
| | Here's the image [link](http://postimage.org/image/kee0ndxdv/)! Will this be possible ?? If so let me know how to do it guys. I dont know how to send the response to the browser directly help me guys.. Thanks, HOSTGUY |
| | Hey I'm trying to add pairs of numbers into an array by placing them into objects then putting the objects into the arrays but I seem to be having a problem with some part of my code. When I run the following example I just get the following back : … |
| | All, I wonder if anyone has an opinion on this. What's better, this: // Diagonal checks if (board[0][0] == turn) { if (board[1][1] == turn) { if (board[2][2] == turn) { System.out.println(); System.out.println(turn + " IS THE WINNER!!!"); writeBoard(); return true; } } } Or this: // Diagonal checks if … |
 | public class Numberpyramid { public static void main(String[] args) { int x = 9; for (int i =1; i<=x; i++){ for (int j =1; j<=x-i; j++) { System.out.print(" "); } for (int k=i; k>=1; k--) { System.out.print((k>=10)?+k:" "+k); } for(int k=2; k<=i; k++) { System.out.print((k>=10)?+k:" "+k); } System.out.println(" "); } …  |
| | Help, I'm trying to get which object has the greater area of the 3 triangles. Also want to print out the info for each triangle object by calling toString(). If any one would check my work I have done if for any change I need it. Thank you. // testerTriangle …  |
| | I am trying to call two methods from another class which is linked to the current class i am working in. basically if it is a left-button click from the mouse, i want to call the addCounter method (of the myAbacus object). If it is a right button click, i …  |
| | i am new in Java. i would like to know how to find the nth root of any positive number using recursion. Is there any way i can do this without using math.pow()? |
| | I am trying to use a simple println(...) statement to display the value of a variable from a separate class. The two separate classes are linked. AbacusModel class has an array 'peg_array' which stores the number of counters present in each of the elements of the array. AbacusModel has a … |
| | i have problem when i am accessing package of different directory. can we access a package in a single java file that are lies in two different drive/directories? Eg. My one package p1 is in d:/ having class abc.java My another package p2 is in e:/ having class pqr.java can … |
| | how to install jdbc driver for mysql java connector |
| | I have two question in my mind. can we create java file having two classes and both have main methods? is it possible or not? why? if possible then we have to save it with which class name? and one more question is: `BufferedReader br = new InputStreamReader(new FileInputStream(new File("abc.txt")));` … |
| | I have .exe file called Myapp.exe.. Now i want to convert .exe to jar file.. That jar file should work in non java system also? I dont have any idea to implement it.. Can anyone plz suggest me how to do it? Thanks in advance.. |
 | I have seen many questions on autocompeletion for *java text components* like `JTextField` `JTextArea` `JTextEditorPane` etc. There are not many options either: 1) 3rd party library (like SwingX) 2) DIY (i.e using `DocumentListener`, `JWindow` with `JLabel` etc and a few requestFocusInWindow calls) I chose number 2 and put the code … |
| | Hi everyone, I have made a desktop application in NetBeans IDE 7.3. In the dist folder ,there is my project's executable jar file. But by double clicking it is not opening. Can anybody make suggestions about it, Thanks in advance |
| | Hello, I am new in trying to figure out how to use two classes together. One class is called circle, and is supposed to hold attributes of radius and area. It is also supposed to have the methods of print and computeArea. public class Circle { //global data private double … |
 | hello i have problem with sending emails i have good SMTP and port but the message cant be sendend gives me this error: Exception in thread "AWT-EventQueue-0" java.lang.RuntimeException: javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465, response: -1 and here is the code: final String username = "stefanrafaa@gmail.com"; … |
| | Hi, I am having a problem overriding methods in a subclass when they contain private methods from the master class. The is the master: package blabla; public class Person { private String firstName; private String secondName; private String familyName; public Person() { firstName = ""; secondName = ""; familyName = … |
 | I have the following code which is in a class called customerModel. How do I call this method to another method inside another class called customerController? I am abit new to this and have been trying for ages but have had no luck. Please help thank you. public class customerModel{ … |
| | Hey Lads, I Have a problem involving my save method , basically i want it to actually save a file which is of type JTable UnFortunetly its not , a Push in the right direction would be great. save.addMouseListener(new MouseAdapter(){ public void mouseClicked(MouseEvent e){ JFileChooser fc = new JFileChooser(); int … |
| | i wanna send a username and password securely from php page(Apache server) to the Java api (Tomcat server). That api should verify them and open the api in the browser. How can i achieve it guys??? I tried to use webservice but the response from the api is sent to …  |
| | Base on my understand a mediator is a central authority that varies the interaction between objects in the same group. So can I classify the code below as a mediator? package com.mediator; public class BaseMediator { public void store(){ System.out.println("store"); } public void retrieve(){ System.out.println("retrieve"); } } package com.mediator; public … |
| | Hi frnds, I am developing a struts2 project, I do require how to multiply to variable using struts tag ... I tried with this code below, <s:set var="total" value="var1" /> <s:set var="tot" value="%{var2 * #attr.total}"></s:set> <s:property value="%{'' + #attr.total}"/> AM getting the output as 0.0 .. Please any help ... |
| | package pkg2.pkg3; import java.io.*; import java.util.logging.Level; import java.util.logging.Logger; class pachet { double adresaS; double adresaC; String com; String raspuns; pachet(double adrS, double adrC, String c, String r) { adresaS = adrS; adresaC = adrC; com = c; raspuns = r; } } class Client extends Thread { pachet p; double …  |
| | A temperature converter GUI. Converts from Celsius to Fahrenheit and vise versa. Tests JLabels, JButtons and JTextFields. *Two separate programs, Converter and Thermometer (Thermometer Class)* |
| | Write in pseudocode the algorithm for determining the average value of an UNSORTED array of numbers, given an array of "a" with number of elements that have a value "length". Additionally, what is its order in Big-O? If the array of numbers were ordered, can the algorithm change? If so, … |
| | I have an jar called Myapp.jar.. It is working fine in java installed system.. And my task is to Bundle jre inside jar(Not along with jar(i.e we can put jre and jar in same folder to run a jar as given in following url http://www.mindfiresolutions.com/Run-jar-without-jre-on-windows-machine-76.php )). and I should not … |
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