32,199 Topics
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 | I am trying to use such a hexadecimal floating constant "0x0.DAB789B" in java but it gives me java.lang.NumberFormatException. How can I convert hexadecimal float constant to decimal? I know how to convert hexadecimal **int** constant but that does not work for float constant.  |
| | Implement in Java a class Coin that describes a coin with a name (e.g. dime) and a value (e.g. 10 cents). Also implement a class Wallet that describes a collection of coins. Supply a method add() to add a coin to a purse, and a method printContent() that prints out … |
| | I'm writing a VB.NET software application in which I want to plot some placemarks on a google map which is in a webbrowser control in the application. weburl = applicationpath & "/googlemaps.html" WebBrowser1.Navigate(weburl) To accomplish this I call a javascript function from VB.net in this button event: Private Sub Button1_Click_1(ByVal …  |
| | public class ClickListener implements ActionListener { public void actionPerformed(ActionEvent e) { System.out.println(e.getSource().setText("Changed")); } } Eclipse tells me that `setText()` is undefined for type Object. This tells me that `getSource()` doesn't actually return the JButton object. How do should I do this then? How I change the text of the clicked … |
| | I have doubt that what we are using in java as String, is it class or datatype? String str = "hello" String s1 = new String("Hi") What is the difference in above two statements? Which is object of String class and which is varialble of datatype String? Because as i … |
| | Hi all, I have created a java program that reads in the number of rows and columns entered by the user, and creates a board of that size. Then, it takes in the position of cells (x, y) that the user wants to make live on that board. -1 will … |
 | Hi,... I tried to run the code using the java emulator but it only provides one phone emulator at a time I couldn't see if it does pass the word, what I did is that I downloaded the sun wireless toolkit which can run multiple number of mobile emulator. I … |
 | Hello I have made a simple program, but I have a problem with my IF...ELSE statement. Il explain under the code. Main Class: public class Learnt { //Main void in Learnt class public static void main(String args[]){ //Ask's user for name then prints it String AskForUsersName = "What is your …  |
| | import java.util.*; class nw { int dis(int p) { int c=0,flag=0; for(int j=1;j<=p;j++) { if(p%j==0) c++; } if(c==2) return 1; } void hui() { int c; int p,q; Scanner sc=new Scanner(System.in); System.out.println("range p"); p=sc.nextInt(); System.out.println("range q"); q=sc.nextInt(); for(int i=p;i<=q;i++) { c=dis(i); if(c==1) { System.out.println(i); }}}} {it says missing return statement! … |
| | How can I display a color in java with a certain color, Please help with an example.  |
| | Hello, I would like to build my application which is interacting with my localhost database. In netbeans before I run the program I need to turn on Wamp and "Start all services" in order for the program to run properly. My question is, when the jar file is made, will … |
 | Hi there, I have to calculate the pithagorean triplets up to 500 (it's an exercise I found on the deitel and deitel book) and I got a little stuck, in that it looks like I am getting an infinite loop. The exercise says to use a triple for loop, but … |
 | Hello guys I have a problem in resizing the image in my java program here is the code: import java.awt.*; import java.applet.*; public class sampleCaseStudy extends Applet { private Image MyImage; public void init() { MyImage = getImage(getDocumentBase(), "manginasalmo.jpg"); MyImage.getScaledInstance(700, 100, Image.SCALE_DEFAULT); } public void paint(Graphics g) { g.drawImage(MyImage, 0, … |
| | Hello Sir, I have a simple Issue but It is not resolve by me i.e input parameter are not store in Ms-Access. I store the input parameter through Standard Action <jsp:useBean>. jsp:useBean call a property IssueData. this property exist in SimpleBean which create a connection from DB and insert the … |
| | i have an image stored in the column( img) of mysql table albums. the format is blob. i do not no how to retreive it from the table and display it in a label img1 in my netbeans project. how do i write the resultset code and display it on … |
| | Recently got a new windows 8 laptop and having trouble using features in eclipse. For instance I can't connect to my local database, can't connect to the eclipse marketplace and even can't run JUnit tests! (Gives a could not connect to error) I believe there is something going wrong with … |
| | public static int findMaxPosition(int n[]){ int i, maxPosition =0; for (i=1;i<n.length;i++) if (n[maxPosition]<n[i]) maxPosition=i; return maxPosition; }  |
 | Hey everyone, So i've been doing some reasearch and I can't seem to find the answer to my problem anywhere. It could also be that I don't really understand the articles I find in google but I figured I'd ask here since everyone is always so helpful. So for a … |
| | Hi Everybody I tried and failed to display images of employees in jTable. I have a MySQL Table which have 4 fields - ID,Name.Phone,Photo(Blob data type). Now I am able to retrive data from this table and display it in JLabel with other data in JTextField, but How can I … |
| | is it going to be possible to have a connection if I create a J2ME (netbeans) as client and vb.net (2010) as the server? |
| | I keep getting an error in my MoneyDemo class, it reads, "Method checkMoney in class Money cannot be applied to given types; required: no arguments; found int, int; reason:actual and formal argument lists differ in length" Also here is my list of objectives for the program which I'll be graded …  |
| | public class JavaApplication1 { public static void main(String[] args) { for (int i = 5 < = 100; 1 + = 5){ System.out.print(i); if (i <100){ System.out.print(","); } } } } |
| | Can any one please tell me how to connect a simple java web application to Oracle10g Express edition? Which driver should I use? Thanks in advance. |
 | I am in need of SDK ME development kit for creating Mobile applications using Netbeans IDE 7.1.1. Favour me in this regard. Velhassan.  |
 | java and j2me are same or what ? Can I make j2me app. After learning java ? If yes Suggest some good free website to learn java which gives complete a2z course ? |
| | hello everyone.. I am trying to connect a simple application to Oracle XE database. But when I run this program , the else part of program is running. Can Anyone tell whether I hav ewritten the code correct or not. import java.sql.*; public class jbc { public static void main(String … |
| | I would like to create a font file (like .ttfv or etc) by using java, how can I do it. If java cannot create or edit font file, could you tell me which program language can do it? I would like do it by programming without exists software. I really … |
| | I'm almost done with my assignement I've created 2 class and I have one format method in student class the file look like this (there are about 25 lines) courseNum courseName courseSemester studentID,studentProgram,studentGpa studentID,studentProgram,studentGpa the output should look like this courseNum courseName courseSemester studentID--studentProgram--studentGpa studentID--studentProgram--studentGpa I'm still not sure if … |
| | I just need help to display my initial value of 25000 when the loop runs and print the years. I need the year 1 to be the initial value without doing the percent first. Also my print format doesnot display the $ and the headers. Any guide to the right … |
| | i am working on a program called myBalls. so far, heres what i have import java.util.Scanner; public class Penis { private int length; public Penis() {} public void setPenisLength(int l) { length = l; } public int penisLength() { return length; } } public class myBalls extends Penis{ public static … |
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