35,618 Topics
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| | Hi, I am having a bit of trouble finding a way to check a string for the highest and lowest number. Example: I would have a: [CODE]String example = "1 3 5 9 4 3";[/CODE] And now I would have to check which is the lowest number and the highest … |
| | First i create simple claculator.but now I am trying to change it to RPN calculator by using stack.Can some one help me because I don't know alot about stack.here is my codes so far. [CODE] import java.util.Stack; import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import java.util.Scanner; public class CalcGUIPanel … |
| | I am btech cse student final year. I have more eager to develop the projcet on java platform but I dont know how to initiate and what books I have to read. Please suggest me some tools and advices for developing the project in java  |
| | PROGRAM GETS COMPILED...BUT GIVES ERROR ARRAY OUT OF BOUNDS...PLEASE HELP AS SOON AS POSSIBLE !!! import java.io.*; class Evaluate { char postfix[]; int stack[]; int i,a,b,c,top,n; BufferedReader input=new BufferedReader(new InputStreamReader(System.in)); Evaluate() throws IOException { System.out.println("ENTER ARRAY SIZE"); n=Integer.parseInt(input.readLine()); postfix=new char[n]; stack=new int[n]; top=-1; i=-1; } void readpostfix() throws IOException { … |
| | Ok this is driving me absolutely crary! I'm trying to add a static method Account consolidate(Account acct1, Account acct2) to my Account class that creates a new account whose balance is the sum of the balances in acct1 and acct2 and closes acct1 and acct2. The new account should be …  |
| | Hello! I create a class which extends Thread. I can start the thread with run() method but the new thread does not runs parallel on my main application. I try the start() method which runs perfect and parallel to my to my main application. -Here i could not understand what … |
| | Hey everyone, I have a quick question about some Java code. I need to write a method that fills an array, with a few conditions. The method I'm writing is called readArray. There are [U]two[/U] arrays, one called "states" and the other "capitals". I have to fill both these String … |
| | hello all i just learn java syntax to extrac jar file we command : jar xf jar-file but there no information where the extracted files will be located and what is the sign if the command successfull or not any info ? thank denny |
| | Hello Dear Brothers and sisters How are you................? I'm Student of bscs in 6th semester i write three programs but all of these are giving errors and i'm not able to findout probelm. but i thing problem is some where with CONTAINER please check all these Thanks [COLOR="Red"]First One[/COLOR] [CODE]import … |
| | Hello - I am a student who bis mid-semester in an OOP course, with zero programming experience. I am trying to understand the concepts but this stuff is tough....I have an increased level of respect for all of the developers out there! Here is my question..in the code i am … |
| | I am trying to create an array of a custom object and I think the error I'm running into is that the objects within the array are not initialized prior to use (its a run time error, so i'm not entirely sure). The part that doesn't make sense is, if … |
| | Hello. What is the best way [an a correct one] to check a value, lets say I need a user input in a certain range. Could I place this check inside a setter method? My setter would than be a boolean return type instead of void? Are there some "laws" … |
| | This program simply creates an array of movies with a star rating for each one. My problem is, I want to have code that adds the contents of the array if the movie is the same. So for my example I was using Frozen Ground as the movie. In my … |
| | I'm using a horizontal JSlider. 1. The thumb slider is pointing [B]down[/B], and the ticks and labels are [B]below[/B] the track. How do I reverse this? I want the thumb slider to point [B]up[/B], and the ticks and labels to be [B]above[/B] the track. 2. How do I increase the … |
| | The source is available at [URL="http://code.google.com/p/java-cli-api/"]http://code.google.com/p/java-cli-api/[/URL]. It is not yet in the Maven Central Repository, but I did post the initial 0.0.1 release on the Downloads page if you do not want to check out the source. If anyone has comments/critiques on it, I would love to hear them. The … |
| | Hello all. I started out yesterday trying to understand the point of webservices and how to use them. I found countless tutorials but most of them seemed not enough for what i need to understand or outdated or not "manual enough" so i'd do it myself and get it. IDE … |
| | I'm currently working on a project where I need to Authenticate the Client using his/her certificate. I have created my own CA, Server and Client certificates and imported them into my browser. Then I wrote a JSP code just to read the certificate. That is the program returns the commonname, … |
| | So I had to make a program that calculates the volume of sound at a different distance, given a reference difference, and sound level, and the new distance. It works sometimes but depends on what values I put in. Much of the time it tells me the new volume level … |
| | Hello fellow members, I have recently started to study Java, but the lecturer went through basics very fast and now I'm having problems with starting to write a class. I have an idea of how to write the methods, but how to declare the array properly at the start to … |
| | Hello I'm a vb.net programmer and I am learning java so I was trying to figure out what is "sender" (VB.net) keyword in java? sender is simply a keyword in VB.net, for example you have multiple buttons having the same event and the code but you differentiate them in the … |
| | Can any one tell me why continue statement is not working in if ? i tried with following code [CODE] outA: if(userValue==randomValue) { int luck=s.nextInt(); int randNo=(int)(Math.random()*(userValue*2+(1))); int arrValue=point[i]; arrValue+=userValue; point[i]=arrValue; continue outA ; } [/CODE] but it shows error |
| | Hey so I've been working on a lab for my intro to software developing class and have been trying to get my program to work for several days now. It's a real basic program, im sure someone will be able to figure out the issue im having. Hopefully once I … |
| | Does anybody have a login using access code of y.daniel liang, Introduction to Java Programming, Comprehensive Version, 8E. thank you if you give it to me to share video chapters..:)  |
| | "aung myo hein" to "nieh oym gnua" how to convert with CharAt GUI JTextField or JOptionPane |
| | Can i get the codes for Bresenham Line Algorithtm. I have searched for it on google and i get the codes but they do not attach the codes to call the class, and also the codes do not allow user input. Am now learning java so adding comments would help … |
| | Hello i am new to java and o have to write a program that determines the number of prime numbers less than N which is given by the user, but i have no clue where to start |
| | I get this error, [CODE]Exception in thread "main" java.io.IOException: Cannot run program "java -jar C:\Users\Jack\testFile.jar\" (in directory "\"): CreateProcess error=2, The system cannot find the file specified at java.lang.ProcessBuilder.start(Unknown Source) at testProject.Main.main(Main.java:15) Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified at java.lang.ProcessImpl.create(Native Method) at java.lang.ProcessImpl.<init>(Unknown Source) …  |
| | Okey I am making a simple chess program as an assignment and I ran into a few problems I coded a file called ChessPiece which is the Base class of all the chess Piece eg King ,Queen and etc... We have to create a interface class call ChessPaint that draw … |
| | hello all where is the directory to place file below import com.toedter.calendar.JDateChooser; is it correct if the extracted folders and files be placed in folder c:\com\toedter\calendar\JDateChooser ? or because i place my source file in c:\java\src do i have to place the extracted folders and files in c:\java\src\com\toedter\calendar\JDateChooser ? I … |
| | can somebody help me with switch statement. [CODE] import java.util.Stack; import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.math.*; import java.util.Vector; public class Ahsan extends JFrame{ Stack s = new Stack(); private JFrame f; private JPanel p1,p2; private final int ADD = 1; private final int SUBTRACT = 2; // declare …  |
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