32,199 Topics
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| | I have a txt file with 5 integers, then from standard input if I entered 1 it will output 10 if I entered 3 it will output 30. I put mine in an array, I just want to know if its possible to not put it in an array and … |
 | To tell the truth. this program isn't mine. I got this from book "Robert Lafore. Data structures and algorithms in java". There are all written in detail and comments how to implement a 2-3-4 tree, but I need to implement a 2-3 tree. It is not present in the book. …  |
 | Hello, I am having trouble sorting my array. I have gotten it to read out just the names in ABC order, but I need it to display all of the attributes. I have read several sites trying to figure out how to do it and I keep getting errors. Here … |
| | i need help trying to set a program that will have three arrays one for number of students anothe rfor 3 exams and final the average of all the grades can any one help |
| | Hi guys :) It's my first time posting and I need help with a program I'm supposed to write for school. I have no clue how to do it and could use any information, thank you! Here's the Information: "Ask the user to enter a word. Output the letters in …  |
| | Please how do I implement a load balancer for Java RMI servers  |
| | import java.util.*; class Customers { private String name; private int accountno; private String status; private String type; private int currbal; private String Login; private int Pin; public Customers() { this.name = " "; this.accountno = accountno; this.currbal = currbal; } public Customers( String name1, int A, int Bal) { name …  |
| | Dear All, To be brief, have drag and drop leading into a pdf to jpg converter. It was working, now stopped. My thoughts are either; 1) something stuck in computer memory I can not erase (it is calling a pdf with more that allotted pages) 2) I may have a … |
 | Hello, My name is Steven and I am studying for the OCA-JP-SE7 (1Z0-803) exam and I am using Enthuware Test Studio for practice questions. I came across a question that has to do with the arraycopy method and am having some trouble understanding exactly what is happening. Here is the … |
| | hi all, i want to create a full duplex voice communication system that transfer voice in a LAN network i will be greatful for any help that you could provide since i do not know how java deal with voice and how it convert it from analog to digital thanxs … |
 | Dear, All Viewers I need your help guys I need to convert the python Asterisk Gateway Interface (AGI) PHP or Java or Perl Asterisk Gateway Interface (AGI), Please if anyone know about it help me ASAP, I wait for your feedback guys. Thanks here is Code... asterisk.py code is below: … |
| | Please help in understanding the requirements. This is how I understand it, first, from standard input (I'm will need to use Scanner) read in 100 integers. 2nd, put all the 100 integers in a file (using printwriter in my case) 3rd, use that file to catch the exceptions (ArrayIndexOutOfBoundsException) Write … |
| | Hey everyone, I;ve implemented SSL to my server using [this guide](https://blogs.oracle.com/lmalventosa/entry/using_the_ssl_tls_based) now when I connect the server it takes some time to initialize now, I assume its setting up stuff, and then when the client connects takes awhile as well (few seconds), I'd assume it works but I want to … |
| | Error : java.lang.String cannot be converted to String import java.util.*; class String String str; String newstr; void inputString() { Scanner sc = new Scanner(System.in); System.out.println("Enter a string:"); str = sc.nextLine(); } void checkFrequency() { int freq = 0; System.out.println("CHARCTER FREQUENCY"); if(str.isUpperCase) { char []sArray = new String[str.length - 1]; for(int … |
| | Heya guys, i have been trying to make this very famous ball game using java swing. although the primary code ihave used is from this link [[Click Here](http://www.edu4java.com/en/game/game6.html)](null)but been trying to modify it to make it look less complex..But everytime i run it it gives me following error: Exception in … |
| | can someone help me or tell me why I am getting these errors. where I have gone wrong again public static void main(String[] args) { Scanner read = new Scanner (System.in); double taxable_income, income, tax, sum; System.out.println("Please enter taxable income"); taxable_income = read.nextDouble(); System.out.println("Please enter income"); income = read.nextDouble(); if(taxable_income … |
| | Hi I have developed some selenium scripts with TestNG and i made it as a runnnable jar file, but when i am executing that its giving me the following error as log4j:WARN No such property [maxBackupIndex] in org.apache.log4j.FileAppend. The below is my log4j.properties file. # Root logger option log4j.rootLogger=INFO, file … |
| | I have a program to write and keep getting syntax error but can't figure out what is the error, can somehelp me out here, any kind of help with it will be greatly appreciated. here is the program and what I have so far. this is the program: Write a … |
| | Hi Iam having some problems with this program, I think its minimal but i don't know how to solve it . THIS IS THE PROGRAM=A teacher gives 5 tests, but averages the four highest scores. An average of 90 or better recieves an A, 80-89a grade of B, 70-79 a … |
| | Hello I am trying to bring label and textfield closer to each other but not getting the right way how to do it, my code is giving output with a big gap between label and textfield & label and passwordfield. I want some help on how can I remove this … |
| | I want to addtiming execution in java code but I don't know how? Here is the code of Bucket sort import java.util.*; public class BucketSort{ public static void sort(int[] a, int maxVal) { int [] bucket=new int[maxVal+1]; for (int i=0; i<bucket.length; i++) { bucket[i]=0; } for (int i=0; i<a.length; i++) … |
| | using Iteration for loop in java what would be the program to run a) 1!+2!+3!+4!+5! b) 1/1!+2/2!+3/3!+4/4!+5/5! c) 1/1!-2/2!+3/3!-4/4!+5/5! |
 | i have the last update of java, but i'm getting some problems with it :( sometimes works other times don't. only in internet explorer works more or less but not on chrome. can anyone explian to me how can i fix the problem? |
| | I'm fairly new to java, so forgive my incompetence. This program is pretty simple, I'm trying to take the string that a user inputs and return the vowels in the string. The error I'm getting is as follows: > VowelsA3.java:16: error: cannot find symbol > if (isVowel(letter) == true) > … |
 | Hi... I really need help in my hw because it will be submetted tommorow . Problem # 2: Write a Java application that test whether a two dimensional array, input by the user, is a magic square. A magic square is an NxN matrix of numbers in which every number …  |
| | hi... Problem # 4: Modify problem 4 in hw6 to record students score in each question and the question shown to the user. For example, Rectangle Red 2/5 means that the student was shown a red rectangle 5 times and he got them correct only two times (attempt count include … |
| | Hi... This is my first post and I really need help in my hw because it will be submetted tommorow. Problem # 1: Write a program that fill two arrays rad[10] and len[10] by random generator (numbers between 0 and 100). rad[] array represents the (radius) of Cylinder, and array … |
| | Hello, I am having trouble with my inventory program. I made the first part last week and thought I did a good job. Come to find out I did not and the feedback I recieved from my instructor was not very helpful. Is there anyone that can help me fix … |
| | Hi I am trying to change the <p id="returnsuccess"></p> to say anything at this point. I have some code it's about a form submission I don't think the PHP part is that important in solving this problem. But I want to know why the code I have doesn't work and … |
| | Hey guys, Just got a quick question ... I am implementing a client GUI, and part of the requirements are that the client is able to start, stop and restart the server. This got me a bit confused since the client connects after the server is running. What I am … |
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