I am building a program that when you enter 1. it allows you to setup an item. However running my code my second if statement runs through.
import java.util.Scanner;
public class InventorySystem {
public static void main(String [] args) {
Scanner input = new Scanner(System.in);
int count=0;
int inputEntered=0;
int numberOfItems=0;
double cost=0.00;
String item;
String description;
[code]...
I am trying to implement a game using the ACM graphics. For the game, I am trying to make the main frame a Grid of Cells.I made a Grid class which extends GCanvas:
import acm.graphics.GCanvas;
public class Grid extends GCanvas{
private final static int WIDTH = 300;
private final static int HEIGHT = 300;
private final int DIMENSION = 5;
Cell[][] grid;
[code]....
My console SQL Query app is not giving me the desired output.I am sure its might have something to do with my SQL Query.Its missing the description of the stock items and it prints a new line for each user as per number of stocks an repeats the user details and then prints the stock listed by that user(only want the user listed once with all its stocks). I will add my files and current output and desired out put below.
MakeDB.java:
import java.sql.*;
import java.io.*;
public class MakeDB
{
public static void main(String[]args) throws Exception
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String url="jdbc:odbc:StockTracker";
[Code] .....
Code structure :
Server : Java Servlet
Client : Simple JSP
Communication : Server Sent Events every 1 second
Here is the problem.
My code needed the server to send updates every one second to the client as stated above. Hence, I added a while loop with a sleep of 1000 milliseconds in the servlet code as shown below. The following strange behavior is observed:
- While the server is sending updates to the client, and the client window closes by mistake, the server does not stop sending updates It continues sending the data.
- When the client is re-opened, it sends data much faster (almost double). For example, the server sends 60 seconds worth of updates (60 updates) in just 25-30 seconds. The server sends faster updates not only for this round of updates, but also for any subsequent updates.
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse res)
throws IOException, ServletException {
PrintWriter writer = null;
try{
[Code]......
This server behavior is much unexpected. Am I writing the server side code wrong? I have looked around a lot and only found while loop method for modifying the server update interval. Is there any other method which I am missing?
So in my parallel array i read from a textfile of strings and if i enter the string into the string array and if strings are repeated i store it in a parallel array that counts repeated instances. I'm supposed to get 27 15 21 23 20 but instead i get 106 0 0 0 0....
Scanner sc=new Scanner(new File("Cat.txt"));
String category=sc.nextLine();
int total=sc.nextInt();
int[]totcat=new int[total];
String[]names=new String[total];
while(sc.hasNextLine()){
[Code] .....
I'm having a problem where an if statement isn't working. In the Person class boolean olderThan ignores my if statement so it always returns false and I just don't get why that's happening.
import java.util.Calendar;
public class Person {
private String name;
private MyDate birthday;
public Person(String name, int pp, int kk, int vv) {
this.name = name;
[code].....
code=Java
import java.util.Random;
import java.util.Scanner;
public final class Derp {
public static int WIN, Tick;
public static Scanner Input = new Scanner(System.in);
[code]...
why this boolean statement isn't working correctly. It's not detecting that the WIN and Tick are the same and instead chooses to always run the second statement.
My if else statement is not working...it keeps telling me that the else in the statement is a syntax error and that I should remove it. Whats wrong with it?
package Homework2;
import java.util.Scanner;
public class Homework2 {
public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println("Welcome to the Triangle Program.");
[Code] ....
String name="admin";
String fpass="";
try {
BufferedReader in = new BufferedReader(new FileReader("D:Dairy MangamentNew1 Dairy ManagmentPassword.txt"));
fpass = in.readLine();
in.close();
} catch (Exception e) {e.printStackTrace();}
[Code] ....
Its not comparing the user name and password..
Alright so I'm trying to write a code that implements a for loop and if statements that displays any number from 100-200 if the number is divisible by either 5 or 6 in rows of ten numbers each row. If it is not divisible by that number then it should go back to the beginning of the loop until it reaches 200. My main problem is that it doesn't display anything. I don't get any errors or anything but every time I run the program it just displays nothing. Sample output is at the bottom of the code.
public class Exercise5_11 {
public static void main(String[] args) {
int count = 0;
int i = 100;
//for (the numbers from 100 to 200)
for (i = 100; i>100 && i<200; i++){
[Code] ....
/*Output
100 102 105 108 110 114 115 125 126 130
132 135 138 140 144 145 155 156 160 162
165 168 170 174 175 185 186 190 192 195
198 200
*/
It is still wip of course so I was trying to just get it to display int i but it doesn't do anything and I'm not really sure why.
So from what iv learnt in Java and programming in general is that using a case statement is far more efficient that using multiple IF statements. I have an multiple IF statements contained within a method of my program, and would like to instead use a case statement.
public String checkPasswordStrength(String passw) {
int strengthCount=0;
String strengthWord = "";
String[] partialRegexChecks = { ".*[a-z]+.*", // lower
".*[A-Z]+.*", // upper
".*[d]+.*", // digits
".*[@#$%!]+.*" // symbols
[code].....
So I want to make a simple Java that ask the user to pick a powers and it has two options.If the user picks magic then execute the first if statement then ask the user again which type of magic the user wants.I can't make it work it keeps printing the else statement. Why is that?
import java.util.Scanner;
public class Variable {
static Scanner zcan = new Scanner(System.in);
public static void main(String[] args)
[code]....
I am developing an application to share my client screen with server, it is working well on swing. But i want to develop as web application, i am trying to using applet. But i am facing the fallowing problem..,
1) The Applet screen also open and project also running well on server mechine. But unable to see the client screen on the server.
2) The problem may be to display the JDesktopPane or JInternalFrame.
My working Server Code extends withe JFrame..Java Code:
package remoteserver;
import java.awt.BorderLayout;
import java.awt.Container;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import javax.swing.JApplet;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
[code]....
So i am creating a File object which has a text file passed to it. I then try to do logic with it using a BufferedReader. However, I get a FileNotFoundException on the using my code below. The Error is on the BufferedReader line. I
Java Code: System.out.println("--Reading text file--");
File file = getFile(c,fileName) // Returns a File object.
System.out.println(file); // Shows me the file is looking correct. Displays contents to console.
BufferedReader br = new BufferedReader(new FileReader(file));
System.out.println("BUFFERED");
while((line = br.readLine()) != null) {
try {
// Do Logic
}
catch(Exception ex){
ex.printStackTrace();
}
br.close(); mh_sh_highlight_all('java');
Trying to learn switch statements. Can't figure out what I am doing wrong.
java Code:
import java.util.Scanner;
public class Ok1 {
public static void main(String args[]) {
Scanner input = new Scanner(System.in);
[code]...
When I run, it makes me enter letter = null and it wont output correctly.
I want to write simple game. Why if I press button UP and RIGHT it not move diogonally, may be it have special code. And how I need to write correctly border and gravity?
public class Main {
public static void main(String args[]) {
JFrame frame = new JFrame("Stickman");
Ground ground = new Ground();
frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
frame.setSize(710, 480);
[code]....
If I run this code. I can manipulate it so that X wins. When the third X button is pressed, there is no display saying that X has won and that the game is over. I have read over this code for days and still have not figured it out.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class TicTacToe extends JFrame implements ActionListener, WindowListener{
public JFrame window = new JFrame("window");
[Code] ....
I am currently trying to make a method that will enable a jLabel to be dragged across the screen. I want to be able to drag the object pretty much anywhere on the screen(I hope to eventually make a destination for it where it can be dropped but I will get to that later). I have looked on various places on the internet on how to achieve this and the most simple solution does something like this:
Java Code:
jLabel6.setText("jLabel6");
jLabel6.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
public void mouseDragged(java.awt.event.MouseEvent evt) {
jLabel6MouseMoved(evt);
}
});
private void jLabel6MouseDragged(java.awt.event.MouseEvent evt) {
x = evt.getX();
[Code]...
This actually works somewhat but it is very faulty. For example the jLabel keeps appearing and reappearing as I drag it. Furthermore when I drag it I can see a duplicate Jlabel being dragged as well in the top left hand screen. So how might I fix this?
I am trying to write a date program. I have it written and running correctly, except one issue. I cannot get the numerical date to display correctly. I know it is an issue with printf. I don't know anything about printf. Here is my method to return the day
public int getDay() {
return day;
}
When it returns, it is literally returning just the numeric date. I need it to show up as 02 or 03 instead of 2 or 3, respectively.
the dates are printing out of order. It should appear MM/DD/YYYY however with my code its printing DD/YYYY/MM.Here is my code.
public class DateTest {
public static void main(String args[]){
Date date1 = new Date( 7, 4, 2004 );
System.out.print( "The initial date is: " );
date1.displayDate();
[code]....
how to calculate the child's height in float value fixing value where if you choose male the accurate value, but if you choose female the value will be accurate too.
int heightMother, heightFather;
int heightMaleChild, heightFemaleChild;
String gender;
[code]....
I'm unable to get the output for "AverageDriver" to print correctly(5 scores in descending order and average). The output displays the scores the same way they are entered and the average is always zero. The output for the Average program works fine and with the correct output.
import java.util.Scanner;
//This class keeps 5 scores entered by the user
public class Average
{
private int[] data;
private double mean;
public Average()
[Code] ....
I cannot get the data file to print out correctly when I go to the display case. It only prints one name three times.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.lang.*;
import java.util.Scanner;
import java.io.*;
import java.text.*;
import java.math.*;
import java.util.StringTokenizer;
[Code] ....
Output when I choose Case 1:
Minia
Minia Jane
Minia Jane
I'm working on a homeowork assignment here URL... and I can't get the graph to work correctly. I'm not really sure how to print the string of names, gender and rank at the point on the graph. Also I'm just wondering if I set up the scanner to find names right.
import java.util.*;
import java.io.*;
import java.awt.*;
public class Names {
public static final int year = 1880;
public static final int decades = 14;
public static final int decadeWidth = 70;
[code]....
I have two programs that talk to each other over a TCP connection. When I write the data "STX+1234" where STX is the Ascii character STX or Ctrl B and I expect the written String length to be 6 which it is. On the other side of the socket I create the ServerSocket and use the client socket's InputStream to create a BufferedReader. When I receive the string it now has 12 characters where each original character has been replaced by NUL and the character. How do I read the string as it is originally specified without the conversion? And is the problem on the reader side or the writer side?
View Replies View RelatedI'm having a problem with SplitPane (horizontal Flow). What I'm looking for is to find a way to maintain the left pane in the same position when the main window maximizes. I do not want the left pane to grow on its width. If I go into the AnchorPain Constraint in the Scene Builder and remove the right and left constraints, when I run the application, the left pane keeps its position, but it appears a gap between the two panes (the left pane and the right one).
I need to find the way to expand the right pane to the position where the left pane is.
The link shows an image that illustrates the problem. [URL]