32,204 Topics
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| | I keep getting a null pointer on this assignment and I figure that I can't fix it because my logic is deeply flawed somewhere. Here is the code that I have: [CODE] import java.util.*; import java.io.*; public class Project1 { public static class MapPoint { private String elevation; private String … |
| | I upload the images like that when i click then input button then i collect the all outputs from inputs? i also submit the code.i have been tired but i cant aolve the problem please if u can send better code or change my code.Help me as soon as possible![code]import … |
| | Basically what I would to know is you have a button on one JPanel, and when the user clicks it, they are re-directed to the other JPanel. I would appreciate it if i could have some sort of hint or know about the overall structure of implementing this. Thanks, |
| | Hi I need to animate user defined algorithms and I have a myGraph class. The dfs() and bfs() will go into the user-defined algorithm the user types and saves in a text-editor included with my program. I am checking the adjacency matrix to know if two vertex are connected by … |
| | 1. Create program TestParentheses that will notify user if set of parentheses is incomplete. Sample Input/Output: Enter expression: y=(x+1); Expression is correct; ________________________ Enter expression: x((y-8)*; 1 set(s) of parentheses is/are missing _______________________ Enter expression: y=(a*(b+(3-b)+(a); 2 set(s) of parentheses is/are missing  |
| | I am trying to write an elevator test program in java. It is suppose to execute the following steps using the methods in the class: 1: Starting from the first-floor. 2: Go to 2nd (update bool GoingUp) 3: Go to 3rd 4: Back to second floor This is what I … |
 | Is it documented? Or have you heard anything? just curious... thanks :) |
| | Can you please tell me why is the first code giving me the right answer whereas the second one giving me a logically incorrect answer. Below are the two programs. The logic is the same. I want to know why the second program is not working even though the logic …  |
| | I'm completely new to java, would like some help. I have a class named class1 and within the class are 2 functions f1() and f2() I take a number as input in f1(). I would like to have that number in f2() as well. I did this by returning the … |
| | Please help me with my homework!:) Here's the instruction, Write a java program that accepts ten letters(small letters), then it will sort them alphabetically, using one dimension array. Please help, I'm dead if I won't get this correct. Tnx |
| | Hi, suppose I have something like this on my main method. [CODE=Java]public static void main (String[] args){ Table one = new Table(); }[/CODE] How can I print the name of the object table? Its so that I can print something like this Table one: Color is ... Texture is.... etc |
| | I have a report class that stores information. A report "is a Document", so I want the report class extend document. But how do i store subclasses in the the Document class. I cant super all the info from the report class creates from the constructor. |
| | Please suggest a good book for learning [B]struts[/B]. I am a beginner with struts, So kindly suggest book keeping this thing in mind. Till now I have heard about [CODE]Struts 2 in action[/CODE]. Any information about this book is very helpful. Kindly reply as soon as possible. |
| | I have a problem with counting the number of input lines and the number of operands. Can someone please tell me what is wrong?... When my input is : System.out.println("\n\nReserved Words: " + ReserveWords); System.out.println("Unique Reserved Words: " + UReserveWords); The number of lines is 11 and I don't know … |
| | I have a pretty solid background on C++. I am interested in possibly expanding to new languages such as Java. I am not interested in reading another 1000 page book on a language when i read that C++ and Java are somewhat compatible. I also read a lot of the …  |
| | Hi guys I'm new at JSP, and I've to run an ex-collegue software. It's Java + JSP, usin' Apache Tomcat. When I run Tomcat and I try to open the Default.jsp page, here's what appears: [code=jsp] HTTP Status 500 - type Exception report Description: The server encountered an internal error … |
| | Hi friends... My name is sijo. I have created a desktop application in netbeans 6.9.1.In that i added 2 java table from the palatte of netbeans and through pure java code .But in those two tables , i need to add an image of a person/anything in one cell of … |
| | I am trying to write a program which converts numeric row and columns values ino the spread sheet designation Input must be in RnCm format where R is row n is row number and C is column and m is column number So If input R1C1, the output should be … |
| | i want to convert following file into table formate how do i do this? i wan to convert it pdf file text file :- 2011012735981481 15:27:29 35235139 15:27:29 LARSEN & TOUBRO LTD. 10 D (DEL) LARSEN & TOUBRO 10 (NET) LARSEN & TOUBRO 10 2011012736007203 15:29:32 35263544 15:29:32 OIL AND … |
 | I received this error when I tried uploading my game to a website (yes I found one). Java Plug-in 1.6.0_15 Using JRE version 1.6.0_15-b03 Java HotSpot(TM) Client VM User home directory = C:\Users\Adam ---------------------------------------------------- c: clear console window f: finalize objects on finalization queue g: garbage collect h: display this … |
| | Well basically im creating a game for a school project and I am coding the Main Menu of the game right now but im having some very strange troubles when removing a JPanel and then replacing it with another. Well this actually works when I use a button to switch … |
| | Hi, I am working on a simple program where in one of the classes i have to add a static method which recursively divides a passed integer by 2 and returns a count of number of calls it takes to reach 1??I also have to Add a static method called … |
| | hi i want read text file and write in such way that each word in the separated by 2Spaces if they are separated by more than 2Spaces keep those 2space as it is and filled remaining space with xxxxxxxx plz suggest to how go to this problem and give some …  |
| | Hi all, I could really use some help with a multithreaded server/client application that I'm building. I'm first experimenting with basic concepts and then am going to implement the results within a larger application. However, I find myself stuck on a particular issue. Initially, I transfer a file from the … |
| | Hello everyone, I am a beginner Java programmer and need your help in understanding What are Environment variables? I do not use any IDE for Java programming at present and use Command Prompt instead I would like to know about what is a CLASSPATH Variable and Is Classpath variable same …  |
| | Hello frnds, Please help me on this java program "Implement Generic programming to perform arithmetic evaluation using command line argument." |
| | I got the below exception when I deployed my application in tomcat 5.The same was working fine in tomcat 6 too. [code=text]java.lang.NoClassDefFoundError: javax/el/ELException java.lang.Class.getDeclaredMethods0(Native Method) java.lang.Class.privateGetDeclaredMethods(Class.java:2395) java.lang.Class.getDeclaredMethods(Class.java:1763) java.beans.Introspector$1.run(Introspector.java:1265) [/code] As per the investigation I found.. The ELEvaluator.class of the provided jstl1.2.jar was not compatible with the jsp-api.jar of tomcat 5 … |
| | Hi, I have a file from which I want to extract values under a particular column and store them in an array This is the file. Could anyone help me to get to read the values under the column k1. fitk2 Date: 2005-08-26 15:37:10 Study: temp2 Data file: k2tis.dft Plasma … |
 | Hey gus can one demontstrate to me a simple way of loading a picture into a panel using JFilechooser. |
| | Hello I have been trying to code this for the last few days, and i am unable to come across a solution for this. Would you please mind helping me out on this? There are some records in a notepad, which are as follows [CODE]1 Paul Mac 3 1 222 … |
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