Calculate (C) How Is The Result 3

Apr 3, 2013

public class NewClass4 {
public static void main(String[] args) {
int a = 1;
int b = 2;
int c = 3;
a += 5;
b *= 4;
c += a * b;
c %= 6;
System.out.println("a = " + a);
System.out.println("b = " + b);
System.out.println("c = " + c);

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Creating Program With Constructors And Calculate Result

Feb 11, 2015

The end result is when I print the total it comes out to be 0. Trying to solve this

package pay;
import java.util.*;
public class manager
{
public manager(String string, int i, String type) {

[Code] ......

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Returning A Result And Then Using It In Main

Jan 4, 2015

I've made a class called Car with a method which will tell me a category for the engine size regarding the actual size (which I've included in the main just so I could see if it works) but everytime I test it I get an error.

public class Car {
public String b;
public String c;
public double es;
public double cs; 
public String getCategory() {
if (es < 1.3)

[Code] ....

Figured it out. Was missing parenthesis on audiCar.getCategory();

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When Add Second Panel The Result Is All White

May 11, 2014

import javax.swing.*;
import java.awt.*;
public class PRJ04 extends JFrame {
public static void main (String [] args) {
PRJ04 frmApp = new PRJ04();
PanelChart pnlChart = new PanelChart();

[Code] .....

When I comment out the adding and setting of the pnlChart on my main driver, the pnlPopulationInputs shows up fine, and it runs ok. When I add the pnlChart I get errors like crazy and a white screen. My errors:

Exception in thread "AWT-EventQueue-0" java.lang.ArithmeticException: / by zero
at PanelChart.drawChart(PanelChart.java:45)
at PanelChart.paintComponent(PanelChart.java:24)
at javax.swing.JComponent.paint(JComponent.java:1054)

[Code] ....

Once more with this one, I refer back to our in class example. Our programs are set up the same, yet he has no issues with the "/ by zero" exception.

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Using A Database Query Result

Nov 17, 2014

I have done 90% of the coding however i am stuck with producing the output, i just cant get the user fields to show.

I have attached a picture of the output that is required. The program consists of two classes i have attached the database class, and have inserted my coding below.

import java.sql.*;
import java.io.*;
import java.util.*;
public class QueryDB {
private Connection con = null;
String userID,

[Code] ...

Attached image(s)

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Program Won't Go To Result After Input

Feb 19, 2014

I have to create a program that takes a list of student names and grades and then takes the 2 highest scores and reads them, but the result won't show. I'm pretty sure it's because I'm not sure about how to code the last part which should output the results. Here's my code.

import java.util.Scanner;
//Reads input and outputs 2 highest scores
//for loop. nested for.
public class HighestScores {
public static void main(String[] args) {
//create values
String studentName;

[Code] .....

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Using Database Query Result

Nov 20, 2014

I have to get my output to show as per the image attached i am very close but not there yet. I have also attached the database where i extract my information from

/*
Program Name: QueryDBDB.java
Purpose: to build an initial database for the stocktrakcer application
*/

import java.sql.*;
import java.io.*;
import java.util.*;
public class QueryDB
{
private Connection con = null;
String userID,firstName,lastName,name,symbol;
public QueryDB() throws Exception

[Code] .....

Attached image(s)

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How To Round The Result To Nearest Integer

Jan 11, 2015

My program is attempting to:

1. ask user to input a decimal
2. output 1 - confirms the input
3. output 2 rounds the input value to the nearest integer.

Here is what I have so far:

/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
import java.util.Scanner;
public class IT145Exercise13 {
static Scanner console = new Scanner(System.in);
 
[Code] .....

Results with input of 5.25:
run:
Enter a decimal:
5.25
You entered 5.25

The integer value is 5 YES however,

BUILD SUCCESSFUL (total time: 6 second)

However, if the input is 5.95 here are the run results:

run:
Enter a decimal:
5.95
You entered 5.95
The integer value is 5 Here I expect 6
BUILD SUCCESSFUL (total time: 6 second

Not sure how to ask the output of the variable integerOut to be rounded to the nearest integer?

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JavaFX :: How To Check All Fields In Result Set

Jan 3, 2015

i need to seek all data in result set one by one.i excuted a query which i don't know the result of it...it could be have one result in result set or 10 result.i tested this code :

PHP Code:

    Query = "select * from book"
      while (Rs.next)) {
row.add(new  Book(Rs.getString(i)));

//Book is a class



but didn't work. do we have any other way we seek the result set without rs.next() ???

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How To Setup Decimal Point For A Result

Apr 18, 2015

Right now it displays a number like this "$25.0" and I want it to display it like this "$25.00" and don't know how to do it.

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Increment Array And Got Unexpected Result

Aug 16, 2014

Java Code:

char array[] = new char[10];
int i = 0;
array[i++] = (char)('A' + i);
System.out.println("char for array is: " + array[0]); mh_sh_highlight_all('java');

However, the result for array[0] is B. Not A. from my understanding, the array[0] should be 'A'.

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Adding Characters To Result Stack

Feb 21, 2014

Right now I have three stacks. Each stack holds characters, with the normal operations of pushing and popping. I am trying to compare two characters from stack1 and stack2(each character is a digit character). I would like to be able to do arithmetic on the digit characters and the push the answer on to a result stack.

Ex.) I pop character '3' from stack1 and '5' from stack2. Then I add the two. equaling '8' and pushing that character on to the result stack. This will hopefully in turn allow me to add arbitrary large numbers that integers will not support.

I am having trouble because I believe I am getting some ascii character values when I pop off the result stack. here is a small piece of my code

public void addition() {
char temp1 ,temp2;
int i = s1.getSize();
for(int j= 0;j<i;j++) {
temp1 = s1.pop();
temp2 = s2.pop();
if(temp1+temp2>=10)

[Code] .....

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Servlets :: Print The Result From The Database

Jul 7, 2014

here is the code,

ResultSet rs = result.executeQuery(selectsql);
int columns = rs.getRow();
while(rs.next()){

[Code].....

I can print out the result correctly, there are three rows of result from the database, but they are shown in one row on the browser, how could i show the result one row after another to let it looks pretty?

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Keep Track Of Result Of Each Roll Using Array

Mar 8, 2014

The code I have below asks the user how many times you want to roll the dice. It rolls dice 1 and dice 2 randomly and gives the total. Now, I'm trying to keep track of the result of each roll using an array that is indexed by the sum of the roll of the two dice. Then I want to output my result in a table that shows each value (from 2 - 12)) and the number of times that value was rolled. I would like to do this preferably with the JTextArea class, but it doesn't have to be. I keep getting errors.The code below works for the dice rolling in the 1st paragraph. I took out all the bad code I was trying to use for the 2nd paragraph.

package Part2pack;
import java.util.Random;
import javax.swing.JOptionPane;
class Dice{
public static void main (String args[])
{
String input = " ";
int count = 0,dice1,dice2;

[code]....

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Increment Array And Got Unexpected Result

Aug 16, 2014

char array[] = new char[10];
int i = 0;
array[i++] = (char)('A' + i);
System.out.println("char for array is: " + array[0]);

However, the result for array[0] is B. Not A. from my understanding, the array[0] should be 'A'.

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Roll Two Dice / Add Them Together And Print The Result

Oct 23, 2014

Write a program that rolls two dice, adds the numbers and prints out the results. I have managed to do this but we have to make it a horizontal table instead of a vertical one. like the attached file "CORRECT", right now i only get the "NOTCORRECT". i have tried for hours to fix this but i can't.

import java.util.Random;

public class Statistikk {
public static void skrivStatistikk() {
Random rand = new Random();
int[] antall = new int[13]; {

[Code] .....

(Antall is basically frequency|side is the same as a face of a die)

Here is my code, does my code need improvement? Or is it my printf that is the issue? i've tried deleting the 's and adding the printf to the same line, but nothing worked.

Attached image(s)

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While Loop - How Result Being Replace If It Only Equals To 1

Jul 6, 2014

I was reading a book and came across this while loop.

public class Powers {
public static void main (String [] args){
int e;
int result;
for(int i = 0; i < 10; i++){

[Code] .....

This loop presents the following (I'm sure it's not necessary):

2 to the 0 power is 1
2 to the 1 power is 2
2 to the 2 power is 4
2 to the 3 power is 8
2 to the 4 power is 16
2 to the 5 power is 32
2 to the 6 power is 64
2 to the 7 power is 128
2 to the 8 power is 256
2 to the 9 power is 512

I am just having a difficult time understand and grasping this concept. My main issue is result *=2; this is making it very difficult to understand. How is result being replace if it only equals to 1.

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JSP :: Result Displayed With Display Tag Library

Apr 21, 2014

I have html code that use form and the result displayed with display tag library the form forward to servlet page but when I use a javascript to change value of hidden after returning to html page the value of hidden input deos not change

<form name="form" method="get" action="Text" >
<input type="checkbox" dir="rtl" ID="CheckBox2" value="check" onclick="All(this,'all','_chk');">
</td>         
<td> <input type="submit" name="delete" value="حذف"></td>
</tr><p>
<div align="center">

[code]....

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Area Of Regular Pentagon - End Result

Jul 17, 2014

I am doing exercises which has to do with the area of regular pentagon.

(Geometry: area of a regular polygon) A regular polygon is an n-sided polygon in which all sides are of the same length and all angles have the same degree (i.e., the polygon is both equilateral and equiangular). The formula for computing the area of a regular polygon is :

I have checked errata on their page and they did not list the type-o under the final result.

Errata link [URL] ....

their result is
Enter the number of sides: 5
Enter the side: 6.5
The area of the polygon is 74.69017017488385

and mine is Area of regular pentagon is 72.69017017488385

is it a code error?

import java.util.Scanner;

public class AreaOfAregularPolygon4_5 {
public static void main (String[] args){
//Initiate scanner and use the input
Scanner input = new Scanner (System.in);
System.out.println(" Enter the number of sides in polygon");

[Code] ....

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Feet To Meters And Display Result

Dec 3, 2014

I have to do feet to meters code. here is the question. Write a Java program that reads a number in feet, converts the number to meters and displays the result. One foot is 0.305 meters.

here is my code :

import java.io.*;
class FeetToMeters
{
public static void main (String[] args) throws IOException
{
InputStreamReader inStream = new InputStreamReader (System.in);
BufferedReader stdin = new BufferedReader (inStream);

[Code] ....

I have seen alot of people use the scanner tool for the start of it but we never learned it as it is an online course but we may end up learning it farther on in our java programming. we have just started with the input and output stuff.

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JSP :: Using ForEach Tag - Display Result Set From Database

Apr 26, 2015

I am trying display the result set from the database.I am getting the following exception :

Caused by: javax.servlet.jsp.JspTagException: Don't know how to iterate over supplied "items" in <forEach>
at org.apache.taglibs.standard.tag.common.core.ForEachSupport.toForEachIterator(ForEachSupport.java:286)

My Jsp code :

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">

[Code] ....

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Cannot Find Symbol String Result

Nov 21, 2014

SimpleDotComTestDrive.java:8: error: cannot find symbol
    String result = dot.checkYourself(userGuess);
                      ^
  symbol:  method checkYourself(String)
  location: variable dot of type SimpleDotCom
1 error

Code:

public class SimpleDotCom {
int[] locationCells;
int numOfHits = 0;
public void setLocationCells(int[] locs) { locationCells = locs;  }
public String checkYourSelf(String stringGuess)
{ int guess = Integer.parseInt(stringGuess);
String result = "miss"; for (int cell : locationCells) {

[Code] .....

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XML :: Split Files With XSL Result Document

Jan 28, 2010

I have below xml file...

<?xml version="1.0" encoding="ISO-8859-1"?>
<T0020
xsi:schemaLocation="http://www.safersys.org/namespaces/T0020V1 T0020V1.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.safersys.org/namespaces/T0020V1">
<INTERFACE>
<NAME>SAFER</NAME>

[Code] ....

And I want to take this xml file and split it into multiple files through java code like this ...

File1.xml

<T0020>
<IRP_ACCOUNT> ..... </IRP_ACCOUNT>
<IRP_ACCOUNT> ..... </IRP_ACCOUNT>
</T0020>

File2.xml

<T0020>
<IRP_ACCOUNT> ..... </IRP_ACCOUNT>
<IRP_ACCOUNT> ..... </IRP_ACCOUNT>
</T0020>

so i have applied following xslt ...

<?xml version="1.0" encoding="UTF-8" ?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:t="http://www.safersys.org/namespaces/T0020V1" version="2.0">
<xsl:output method="xml" indent="yes" name="xml" />
<xsl:variable name="accounts" select="t:T0020/t:IRP_ACCOUNT" />
<xsl:variable name="size" select="10" />

[Code] ....

Now I want to apply this XSL to xml through Java Code...

TransformerFactory tFactory = TransformerFactory.newInstance();
Source xslSource = new StreamSource(xslFilePath);
Transformer trans = tFactory.newTransformer(xslSource);
trans.transform(new StreamSource(xmlFileName), new StreamResult( ????));

Here how can I map new StreamResult( ) input parameter with xsl Result document argument ??

Or Can you give me a link of Example which use result document and Java transform method to Output multiple document ??

Here new StreamResult take only 1 file as to be transformed ....

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Why Does Removal Of Boolean Test Result In Different Answers

Mar 15, 2014

I'm trying to find all of the prime factors for a given number. The following code achieves this:

private static ArrayList<Long> findPrimesOf(long number) {
ArrayList<Long> primes = new ArrayList<>();
long highestDivisor = (long)sqrt(number);
for (long divisor = 2; divisor <= highestDivisor; divisor++) {
if (number % divisor == 0) {
boolean isPrime = true;
for (long i = 2L; i < divisor; i++) {
if (divisor % i == 0) {
isPrime = false;
break;

[code]....

However, if I remove the boolean test isPrime, as below, I get additional numbers after the highest prime factor.

private static ArrayList<Long> findPrimesOf(long number) {
ArrayList<Long> primes = new ArrayList<>();
long highestDivisor = (long)sqrt(number);
for (long divisor = 2; divisor <= highestDivisor; divisor++) {
if (number % divisor == 0) {
for (long i = 2L; i < divisor; i++) {
if (divisor % i == 0) {
break;

[code]....

I can't work out why this should be. From my understanding, the divisor only gets added to the list of primes if the loop doesn't break (which, with the boolean test would be true anyway).

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Swing/AWT/SWT :: Display Console Result In JTextarea

Mar 29, 2014

I have a problem with my code,in fact I can't output the stream from console to my jTextarea,this is my code:

public class AudioFrame extends javax.swing.JFrame {
static double[] audioFile;
static String audioToDecode;
static String audioKey;
static String outputName;
static String outAudio;
static String name;
static int command;
static String textToEncode;

[Code]...

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Rectangle With Numbers - Result Type Is Void

Jun 12, 2014

I want to write a method which would give us a rectangle with numbers. The input is an integer which represents the length of a line in rectangle and the result type is void. The example for n=4 is:

3210
0321
1032
2103

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