Stuck In A Loop - Max Value Gets Reset To The Next Value In File
Mar 14, 2014
The problem i believe is that I have the max value set to the first value given out, but every time the loop repeats the Max value gets reset to the next value in the file.
Essentially the program is supposed to read a list of credit card transactions and tell the user which transaction is the highest.
Here's the list of the sample file, note that the number of transactions could change that's why i haven't tried simply passing the values to method.
Bicycle 562.90
Groceries 138.43
Hotel 612.00
import java.io.File;
import java.io.IOException;
import java.util.Scanner;
public class CreditCards {
public static void main(String[] args) throws IOException {
String fileName = "C:/Users/David/Desktop/CreditCard.txt";
File inputFile = new File(fileName);
I'm back with a question about the Black Jack assignment. I've created a working game that works for one round, as well as a reset button that's able to clear the board of the old hand. However the runGame() loop, which checks whether a player has played his hand seems to freeze the program the second time around
private void initNewGame(){ dealer.addCard(); for(int i = 0; i < numberofplayers; i++){ players[i].addCard(); //draws card, adds score and paints card to the board players[i].setStatus(false); //makes the buttons usable in the players[] class
[Code] .....
I know it's probably not optimal having an while loop constantly running to check the status, but I can't seem to figure out why it freezes.
I'm trying to do the following and my code is putting me in a loop and not allowing me to input a valid entry after using an invalid #.I ask the user for input which contains a loop if the user doesnt use the correct information, however the loop doesnt allow the user to input if the entry fails the which statement
import javax.swing.JOptionPane; // Needed for JOptionPane class public class LoanQualifier { public static void main(String[] args) { double salary; // Annual salary double yearsOnJob; // Years at current job String input; // To hold string input
// Get the user's annual salary. input = JOptionPane.showInputDialog("Enter your " +
I have this code running correctly in Eclipse all except that it seems no matter where I declare, highest, lowest, average they always seem to stay at "0". I have a feeling the location of the Initialization is not the error since I have tried moving it to inside differ loops.
Stipulations on writing this code are:
Note: You do not need to use array to save each input score for this lab. A Single loop to read in each grade, compare with the current highest grade, lowest grade, and calculate the running sum at the same time.
import java.util.Scanner;
/*Write a program that prompts the user to enter the total number of students first. *Then ask the user to input each student’s grade and use loop statements to read in each grade. *Check input grade to make sure 0<=grade<=100, if the user input any other number, print out warning message and ask the user to input a new grade. Display the highest score, the lowest score and the average. */
public class LoopStatements { // Main Method public static void main(String[] args) { // Initialize int grade = 0; // grade value
While analyzing the thread dumps for a performance issue in our java ee web application, I see many thread dumps stuck on a closing brace of a while loop. Here is the code block of a third party library bitronix (version 1.3.3 SNAPSHOT)
public XAResourceHolderState findXAResourceHolderState(XAResource xaResource) throws BitronixSystemException { Iterator it = resources.iterator(); while (it.hasNext()) { XAResourceHolderState xaResourceHolderState = (XAResourceHolderState) it.next(); if (xaResourceHolderState.getXAResource() == xaResource) return xaResourceHolderState; } return null; }
The thread dumps indicate that many threads are stuck in RUNNABLE state on line number 07. What could be the possible reasons on why a thread could get stuck on a closing brace of a while loop? The iterator of the while loop is a custom implementation.
My issue is that when I run my search, it does find a goal. However, when I try and print the route using my print route method, it just gets stuck in a loop of printing the same two nodes. What is wrong with My A* implementation?
I tried this program, its guessing game. Where program decide 1 number and user will guess number. I am getting 1 problem. When user want to play game again.the random number remain same. So where i can put reset random in code..? And 1 more question if I want to write driver code for this. What should i transfer to driver code.
import java.util.Random; import java.util.Scanner; public class GuessGame { public static void main(String args[]) { String choice="y";
I am a JSP/Servlet newbie currently adding the first servlets to a web site that had been static all along. My local instance worked great but the servlets did not respond on the test instance. Apparently, my hosting service provider requires me to use an invoker servlet mapping.
Adding this to local web.xml broke the application but the servlets respond on test instance (when their calls are not preceded by another servlet call). A Servlet fails when it is called immediately after another servlet has been called.
What I saw happening on test is URL for first call is of the form:
The servlets are invoked using "href=servlet/<servlet-name>?Id="
How can I avoid the inclusion of 'servlet' in the URL and reset the URL to the JSP page it navigates to after processing of the servlet?
P.S.: I am also trying to enable the Invoker servlet on local so I can troubleshoot easier. I went through the changes to Tomcat's web.xml and context.xml. However, my local servlets did not respond even after calling them using "href=<servlet-name>?Id=". Is there a way I can check if my invoker is active?
I got the below exception .how to resolve this .It's receiving the data up to 10 min then suddenly below error happening. I have embedded the source code below
java.net.SocketException: Connection reset at java.net.SocketInputStream.read(Unknown Source) at java.net.SocketInputStream.read(Unknown Source) at sun.nio.cs.StreamDecoder.readBytes(Unknown Source) at sun.nio.cs.StreamDecoder.implRead(Unknown Source)
I have to write a program that will generate 20 random circles with random radius lengths. If any of these circles intersect with another, the circle must be blue, and if it does not intersect, the color is red. I must also place a button on the JFrame. If this button is pressed, it needs to clear out the JFrame, and generate a new set of 20 circles following the same color rules. I am extremely new to Java Swing and am really stuck. I have everything working except the button. I cannot get a new set of circles to generate.
I have 5 radio buttons in my gui, I have a reset button which I have resetting everything else but now I am looking to remove the dot from the selected RB when you press the reset.
When we have a jsf form to store clients in a ddbb for example and the backing bean is in session scope.... Lets think of a user that requests 3 times the xhtml view with the form to store 3 clients.
1) If we dont reset the backing bean each time the form is processed, he would see the values he sent beforea and it doesnt have much sense, right?
2) Here there is an example of clearing form after submitting : [URL] ...... Clearing the form after submititng is a common practice for the reason of the statement 1, right?
3 ) What is the best or normal approach to reset values in a form? when the user requests it or done automatically by the application after processing a form?
4) Are there known issues about resetting or not resetting the values in a form bean?
I'm doing a project in netbeans. I have to make a on-line bank with all the GUI. In the middle i got stuck with the classcastexception..
public class Banca { public static void main(String[] args) throws IOException, ClassNotFoundException { // dati dei clienti Anagrafica c = new Anagrafica();
[code]...
And here's the class of the activities of an account.. I'm not posting my classes Conto( Bankaccount) & Movimento (Activity) because those two already do what they should..
I am trying to read from a file and storing them back in the file but its not working, I think the way I am reading is wrong or something. Is the for loop correct way ?
try { in = new BufferedReader(new FileReader("Events_data.txt")); for (int x = 0; x <= Events.length; x++) { tid = in.read(); te = in.readLine();
I have to read from a file that is formatted like that :
name status friend END name status friend END .. etc
could be more than one line of friends, which where I have my problem. I can't get it to check if after the friend name the word "END"
I have tried to write a while loop inside the main while loop but it didn't work, and now I have tried to check that in a separate function which it also failed, thats my two while loops
BufferedReader br = null; FileReader fr = null; int getLine = 0; try { String line; fr = new FileReader(fileName); br = new BufferedReader(fr);
[Code] .....
Most of the time I got nullPointerException or missed up order for printing the file !!
I am trying to read from a text file that has that contains a list of stock tickers and pairs letting the user choose a ticker and provide analysis of stock. Given a ticker from the user provide
1) the max price, the min price and the avg price of the stock from all lines in the file. 2)Additionally the user should be able to find the stock with the highes price as well as the lowest price in the list. 3)lastly the user should be able to specify a different filename for the stock file.
Im trying to do part 1 and I am having trouble trying to read the whole text file and outputting the stock price with the max,min and avg. Am I heading towards the right track at least? Keep in mind I have just attempted trying to read the text file I have and not tried to find the max or min or avg Right now my code is crashing when I enter the stock ticker that is my primary concern.
package hw01b; import java.util.Scanner; import java.io.*; public class Hw01b { static Scanner in = new Scanner(System.in); static Scanner console = new Scanner(System.in);
How to use a constructor with parameters where the user inputs the information? I'm doing a problem where I create a Delivery class that accepts arguments for the year, delivery number within the year, distance code (1 for short distance, 2 for long), and weight of package. The constructor is supposed to also determine the eight digit delivery number (combining the year and delivery number, like 20140054 for this year, package #54).
I know I'm not close to being done but I'm struck on the application with the constructor parameters. If I'm asking the user to input the information, does that mean I have to create a no argument constructor so it will compile? Right now it won't compile because it's asking for the parameters but I can't put them.
This is the class:
public class Delivery { int year; int delNum; double weight; int code;
[Code] .....
And the error is:
CreateDelivery.java:22: error: constructor Delivery in class Delivery cannot be applied to given types; Delivery firstDelivery = new Delivery(); ^ required: int,int,int,double found: no arguments reason: actual and formal argument lists differ in length 1 error
I'm writing a temperature converter for class, and I'm done but one piece that I can't wrap my head around.My input scale radiobuttons work fine, but the output scale radiobuttons don't deselect automatically. They're two different button groups and I wrote them identical save for the variable names.
Total IS those numbers. But question[10] will not cooperate with me and it's getting a bit aggravating as I can't find a logical reason for it to be doing that.how to perhaps lock the value of total and sTotal after 10 button clicks from any?
Write a method called isSorted that accepts an array of real numbers as a parameter and returns true if the list is in sorted (nondecreasing) order and false otherwise. For example, if arrays named list1 and list2 store {16.1, 12.3,22.2, 14.4} and {1.5, 4.3, 7.0, 19.5, 25.1, 46.2} respectively, the calls is Sorted(list1) and isSorted(list2)should return false and true respectively. Assume the array has at least one element. A one-element array is considered to be sorted. public class thirfd {
I have spent some time thinking about the program, and realize I need two loops-- 1 that keeps track of bricks in a row and 1 that keeps track of the number of rows as the Pyramid rises in height. The Pyramid is supposed to be centered on the bottom of the screen. Three CONSTANTS have been required:
I tried breaking the scope of things down by trying step-wise refinement. But, I got bogged down. When I tried a method where both loops were included, I got limited success. For some reason, my equation to center along the x axis seems to be doubling the number of bricks. But, the correct number of total rows of bricks was a success. Also, the Pyramid was centered on the bottom of the screen. Another frustrating failure was that the number of bricks would not decrease as the new layers were created. My thought process was instead of using a loop that counts up (i++) I would use a loop that counts down (j--) which I thought would reduce the number of brick in each row as the "y" coordinate was reduced by each count of the BRICK_HEIGHT.
This is the code that "works". Whenever I add the (j--) the results are NOT what I expect.
/* * File: Pyramid.java * Name: * Section Leader: * ------------------ * This file is the starter file for the Pyramid problem. * It includes definitions of the constants that match the sample run in the assignment, * but you should make sure that changing these values causes the generated display to change accordingly. * [code].....
I have just started to learn Java and have come across a small bump in the road, In the book I am reading it shows an example program using java.io.File with the line File javaFile = new File("test.txt");
The program then goes on to ask if you would like to delete the file with a small do while loop.
Anyway, try as hard as I can I cannot located the test.txt file on my system! is there a reason for this? The program runs fine and has no errors and if I manually create the txt file it will delete it, but it doesn't seem to create the file in the first place.
