31,001 Topics
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| | Hi, I am fairly new to Java and am about to begin a programming course in the next week. I am preparing by completing exercises and am stuck on this particular one. Basically, i need to read a file in a certain format and calculate some figures and writing the …  |
 | Hi friends If we will override nonstatic methods or if we will overload non static methods means shall we say it is the run time polymorphism? Is that so how to give example for compile time polymorphism in java? If i will override static method means, friends are saying it …  |
 | Hey everyone, my if-statements are working as expected. Actually, they are not working at all. The syntax is right but they are never run. The program terminates before it runs them. [code] public static void main (String args[]){ Scanner input = new Scanner(System.in); Display fName = new Display(); // creating … |
| | this is in execute method() { Process p = Runtime.getRuntime().exec(command, env); } System.out.println(r.execute(" C:\\Program Files\\Java\\jdk1.6.0_21\\bin\\javac demo.java” , null)); System.out.println(r.execute(" C:\\Program Files\\Java\\jdk1.6.0_21\\bin\\java demo”, null)); i want to run demo.java from this code i used timer class also. i got the error "Illegal execution time" i dont know why when i run … |
| | Hi All, Currently we are using the code below to fire soap requests, with an input xml and the endpoint url. However, I would like to sign the input soap request using a jks file. How can I modify the code to perform the sign action as well. [url]http://www.ibm.com/developerworks/xml/library/x-soapcl/[/url] |
| | How to Load data with refrential integrity in java (Teradata). if I ran the work flow the data should be loaded to final table. so that i need to populate the source tables with proper refrential data. how to populate refrential data to the source table properly. Thanks in advance. |
| | explain how to pass parameter to thread?? |
| | utilisateurs.java [ICODE]package Model; import Model.base.BaseUtilisateurs; /** * This is the object class that relates to the utilisateurs table. * Any customizations belong here. */ public class Utilisateurs extends BaseUtilisateurs { /*[CONSTRUCTOR MARKER BEGIN]*/ public Utilisateurs () { super(); } /** * Constructor for primary key */ public Utilisateurs (java.lang.Integer _iduser) … |
 | Guys,i have to develop a simulator for Merge sort algo in java.I'm familiar with Java.But i have no idea how to do that.Java applet is easy? or it can be done as a Desktop app.My idea is to do as a desktop application.The programme should allow user to input a … |
| | what is correlation Exception in java?? |
| | Hi...I did some book exercices..i want to ask you are these code right or not? Question1---Write a programme to display a random choices from a set of 3 choices for breakfast.... i wrote this code... public class Exercice3_1 { public static void main(String[] args) { String breakFast = null; int … |
| | Hi! Could Someone please explain me the difference between[I][B] "Pass By Value"[/B][/I] & [B][I]"Pass By Reference"[/I][/B] In Java? I can't understand it clearly. Please give some [I][B][COLOR="Green"]easy example[/COLOR][/B][/I] and little [COLOR="Red"][B][I]description[/I][/B][/COLOR]? Any help would be appreciated. Thanks.:-/ |
| | which tomcat version is application server .? how to use that .. |
| | hi... am develop simulator project...using java (java run time environment) for that can use applet method or java gui frame method.. suggest me.. |
| | Im really bad at programming just started recently and i was wondering how would you combine these for loops since they look the same except for the paramaters this program makes stairs. Thanks a bunch [code]import java.util.Scanner; public class example { public static final int SUB_HEIGHT = 4; public static … |
| | Hi.. Can you help me to understand clearly ,what is abstract class? And how i will used it, how it behaves in a class. Thank you in advance! |
| | Here is my code. my problem now is how to convert it to GUI. [CODE]public class ProductController extends ProductModel{ public String getPname(int barCode){ return this.pname(barCode); } public double getPrice(int barCode) { return this.price(barCode); } public void displayCartControl( int retryTrigger ){ this.displayShoppingCart(retryTrigger); } } [/CODE] [CODE]public class ProductModel { public static … |
 | I am working on my java code using combo box.............I compiled it and it says process complete....BUT.....I cannot view it in applet viewer.....whenever I click the play button, it displays "java.lang.NoSuchMethoderror:main" "Exception in thread "main"............. what do these mean???? How can I make it be displayed in the applet viewer?? …  |
| | I was writing a program that involves the console inputting integers and strings. For my project i prompt the user to enter the number of strings he would like. Then i prompt the user to enter the strings so i could order them alphabetically. I am supposed to use any … |
| | How to create installation setup in java? Thanks in advance. |
| | Hello. This java app I'm developing on NetBeans 7. When i run the project, line 4 below: [code=java]FileReader input = new FileReader("projects");[/code] is not executed and apparently stops execution. Only when debuggin the file or running step by step are the next lines executed. No execution past line 4, except … |
| | Hello, Are we allowed to assign different values to just one variable? For example, gender = [Female, female, fEmale] so if one a user enters any of the specified ones then he/she will be taken to the next step/level. I'm just doing a tute at the moment and coming up … |
 | i have added a picture panel in jscroll pane [code] scrollpane.add(pic1); [/code] now i want that on run time when user click on another pic panel it will be shown at pic1 scroll pane, so i simply use this code [code] scrollpane.add(pic2); [/code] but it doesnt work , so i … |
| | As we can tell from the last coding experince I am clearly not the best at this coding thing. I know now what I need help with and how to ask so this project is "Writing a Java class definition and instantiating the class in a program" Write the definition … |
| | [B]Can anyone help me. I have been bangin my head on this one for two days. variable number may not have been initialized. code to enter single digit number and return largest of ten. code is as follows.[/B] [code] // Java packages import javax.swing.JOptionPane; public class Counter { // main …  |
| | How Comparable is marker interface when it is having int compareTo(Object o) method... we can say it as just interface...??  |
| | I have to read an Excel file and transfer the contents to the database using Java swing.The excel file contains questions for the surveys with options for answers or responses.The database should have a table say Question with columns "Question No., Question, Option 1, Option 2 and so on".I have …  |
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| | [CODE] if (fileScan.hasNext(posPattern)) { posCB = fileScan.nextInt() + 1; for (int i = posCB; i > 0; i--) { String writeByte = fileScan.next(); BufferedWriter out = new BufferedWriter(new FileWriter("E:\\dataReadable.txt")); out.write(writeByte); out.close(); }//for } [/CODE] Using a for loop, how would I write to the file without clearing the contents, so … |
| | [CODE]class Test{ static String str[]; public static void main(String args[]){ System.out.println("args "+args); System.out.println("str "+str); } }[/CODE] [U]Output[/U] args [Ljava.lang.String;@3e25a5 str null My doubt is ... How some object address is printing for args when it has not initialise. In case it has got initilised ,without array size specifiction how its … |
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