32,199 Topics
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| | I'm newbie in Java please help. 1. Create an array with 20 elements.. I know this. This one i don't know.. 2. The program must ask the user to input an element to search for and prints a message: "Found[search key]" then print the remaining data on the next line …  |
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| | I have a HashMap with String keys and Integer values. I want to get a string with the String keys in numerical order of their String values. eg. if I have Orange=1 apple=4 pear =2 grapefruit=3 I want the following String apple, pear, grapefruit, orange. I'm not sure how to …  |
| | I'm trying to write a simple program to identify if two phrases are anagrams of one another. I'm having trouble with sorting an array of characters and defining xarray and yarray. [code] public class Anagram1{ private String x; private String y; private char[] xarray; //? private char[] yarray; //? public … |
 | I need to this program to let me enter in an letters A B C or D so this program can run, why isn't this program not working, please help. Here is my code: public class DriversLicense{ public static void main(String [] args) { //Students answers to the questions char … |
| | Hi, I am a first Year Computer Science student learning java. First, what I want help with is not a homework assignment, I just started it on my own. This program is supposed to test the "Chaos Game" The chaos game is explained here: [URL="http://mathworld.wolfram.com/ChaosGame.html"]Chaos Game[/URL] So, the basics that … |
| | hi there! how do i read a specific line from a text file? maybe im asking the wrong question, so i will try to explain what im trying to do :) i have a file that looks a bit like this(just with 1000 lines): 1 dudea addressa 1000 10000000 maila … |
| | I currently have a page made up of two tiles (tile1 and tile2 say). tile1 is the navigation menu and tile2 is the main tile. I want to be able to call the action associated with a form in tile2 from a button setup in tile1. Anyone able to give … |
| | My assignment requires that I use exception handling to create a directory and file if necessary. I was able to create a C:data\inventory.dat file, provided that there's an existing Data folder (directory) in my C: drive; however, I have a feeling that the assignment wants me to create an actual … |
| | hi! this is my new thread .... i would like to retrieve the excel data into the jsp page and stored it into the mysql. give me solution for that.... thank you, kaleeswaran:) |
| | Hi everybody, I'm fairly new to GUI and even newer to Java and I was wondering if someone can help me find my problem and how to fix it. The problem is I'm doing the game mastermind and I'm checking the guess but everytime I click the button a second … |
| | i got stuck on this assignment...i have no idea how to write it.well..actually i don't know what it is asked for.. could anyone help me with this piece of code? appreciate it... You will create a class that will perform several different functions on Strings that are sent to it. … |
| | n. Write a method that will convert a number from binary to decimal. The binary number will be passed in as an array of Booleans (a true represents a 1 and a false represents a 0.) This is part of a methods practice assignment I was given. I'm currently taking … |
| | Hi all, I have been working programming embedded C for just over a year now. But I am interested in learning Java. In essence, I am looking for a definitive guide to Java, including books and on line resources. From, past experience I know that the best way to learn … |
 | Hi everyone! Can i read audio bytes from user's mic thru java applet and save it on server as .wav or any other format? Is it possible? Thanks. |
| | I was wondering if any one could help in my project work. I am developing an anti phishing project where in my application should be able to sense when the user has opened a browser? I am looking forward for a valuable answer from java professionals. I am developing my … |
| | I'm adding a few JLabels to a Box like this: [code] actor1=new JLabel(""); actor2=new JLabel(""); actor3=new JLabel(""); actor4=new JLabel(""); actor5=new JLabel(""); actor6=new JLabel(""); actor7=new JLabel(""); movie1=new JLabel(""); movie2=new JLabel(""); movie3=new JLabel(""); movie4=new JLabel(""); movie5=new JLabel(""); movie6=new JLabel(""); baconPath = Box.createVerticalBox(); baconPath.add(actor1); baconPath.add(movie1); baconPath.add(actor2); baconPath.add(movie2); baconPath.add(actor3); baconPath.add(movie3); baconPath.add(actor4); baconPath.add(movie4); baconPath.add(actor5); baconPath.add(movie5); … |
| | So for a homework problem I basically need to write a program that reads data from a text file, then input it into an array which I can later use for other functions. The main problem is writing to the arrays. I can't figure out how to do it properly … |
| | My delete button is not working and my due date is Sunday before midnight. Can anyone show me how to correct this error. My assignment statement is below as well as 5 classes. InventoryGUI is the main class to begin execution. I have a Data folder that contains my logo … |
| | Hey guys, I'm trying to read from a file and put each column into it's corresponding array. [code] % P_ID CPU_burst I/O_burst Priority 0 10 4 2 1 8 2 1 2 12 0 5 while ((Line=myInput.readLine()) != null) { StringTokenizer s = new StringTokenizer(Line); //System.out.println(Line); pid[counter]= Integer.parseInt(s.nextToken().toString()); cpu[counter]= Integer.parseInt(s.nextToken().toString()); … |
| | i am trying to make an autorun cd with a digital book in java. 1) How can i find out the cd or dvd drive letter in which has entered my cd? in the code section below i use this very ugly way to achieve this. 2)which is the best …  |
| | please help me create the first part of date class project. Date Class Project (part #1) Create a class named Date The class has 3 int variables for month, day, and year (05 points) The class has a Boolean value for whether the date is a leap year private int … |
| | I need to create a Java program that implements both a stack and a queue (and not a palindrome problem) any suggestions? |
| | Hello all, I am an online student in an intro to Java programming course and am a little stuck on my current program. I do not want the answer, but rather help figuring out what it is I am doing wrong. The program is supposed to prompt for an employee … |
| | i wanna write a othello programm myself.i Googled a platform to test programm.that's very good i think.there is a abstract player(source attached) .i don't how to start it.any good-heart people can give me a sample? use the alpha-beta search is i want to do. THANKS soooooooooo much |
| | I'm dying here. I can't find out why my code isn't working. I get "illegal start of expression" in Blue J. It's on line 34 ( if((menuchoice = = 0) && (gender.equals("M"))) ) [ICODE]/** * Brandon * November 14, 2007 * TDEE */ import java.util.Scanner; public class TDEE { public … |
| | Hi I am creating a vending machine application that takes coins. It takes 5p, 10p 20p 50p £1 and £2 coins. Now I need to keep track of all the coins when inserted e.g. if I insert 2 pounds in 5p coins. When I chose to refund the money I … |
| | so, everything works through the first iteration (don't know if this is an appropriate term for linked lists, but we just learned arrays) but then it stops. I thought that telling it to continue until position.next != null and increasing the position after every iteration would work but I think … |
| | Hey! I am new to java programing and need some help with some homework, here are the requirements: Right now I am working on just setting up my arrays but it is not working. I read the size of the array from the user and then tell the user to … |
 | Hi da, Suggest me good books for Swing and JDBC(apart from Sun tutorials -which I will use) . I have basic knowledge of Swing which I read from Head First Java but I don't know anything about JDBC. Now I want to explore my knowledge in Swing and I'm going … |
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