Rounding Double in J2ME, need help
hi....
i using J2me to develop scientific calc.
but i have problem with rounding the double result.
when using J2SE i can use DecimalFormater...
is there something like that in J2ME ???
tanks...
1. Convert the double to a string using Double.toString(yourDouble)
2. Use yourString.substring and indexOf(yourString, ".") to get the part you need. Concatenate trailing zeros if needed.
3. Convert the resulting string to a double using Double.parseDouble(YourResultString)
The string manipulation will be different depending on whether you want to round to a certain number of decimals or a certain number of significant figures.
If you need a code segment pls supply more details, have tested this approach and it works.
Regards, Darryl
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Hi all, I please need help with my calculator project that I have to do for an assignment.
Here is the project's specifications that I need to do"
"""Create a console calculator applicaion that:
* Takes one command line argument: your name and surname. When the
program starts, display the date and time with a welcome message for the
user.
* Display all the available options to the user. Your calculator must include
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* Make use of a menu. You should give the user the option to end the
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* When the program exits, display a message for the user, stating the
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* Make use of helper classes where possible.
* Use the SDK to run your program."""
When the program starts, it asks the user for his/her name and surname. I got the program to ask the user again and again for his/her name and surname
when he/she doesn't insert anything or just press 'enter', but if the user enters a number for the name and surname part, the program continues.
Now my question is this: How can I restrict the user to only enter 'letters' (and spaces of course) but allow NO numbers for his/her surname??
Here is the programs code that I've written so far:
{code}
import java.io.*;
import java.util.*;
import java.text.*;
public class Project {
private static String nameSurname = "";
private static String num1 = null;
private static String num2 = null;
private static String choice1 = null;
private static double answer = 0;
private static String more;
public double Add() {
answer = (Double.parseDouble(num1) + Double.parseDouble(num2));
return answer;
public double Subtract() {
answer = (Double.parseDouble(num1) - Double.parseDouble(num2));
return answer;
public double Multiply() {
answer = (Double.parseDouble(num1) * Double.parseDouble(num2));
return answer;
public double Divide() {
answer = (Double.parseDouble(num1) / Double.parseDouble(num2));
return answer;
public double Modulus() {
answer = (Double.parseDouble(num1) % Double.parseDouble(num2));
return answer;
public double maximumValue() {
answer = (Math.max(Double.parseDouble(num1), Double.parseDouble(num2)));
return answer;
public double minimumValue() {
answer = (Math.min(Double.parseDouble(num1), Double.parseDouble(num2)));
return answer;
public double absoluteNumber1() {
answer = (Math.abs(Double.parseDouble(num1)));
return answer;
public double absoluteNumber2() {
answer = (Math.abs(Double.parseDouble(num2)));
return answer;
public double Squareroot1() {
answer = (Math.sqrt(Double.parseDouble(num1)));
return answer;
public double Squareroot2() {
answer = (Math.sqrt(Double.parseDouble(num2)));
return answer;
public static String octalEquivalent1() {
int iNum1 = Integer.parseInt(num1);
String octal1 = Integer.toOctalString(iNum1);
return octal1;
public static String octalEquivalent2() {
int iNum2 = Integer.parseInt(num2);
String octal2 = Integer.toOctalString(iNum2);
return octal2;
public static String hexadecimalEquivalent1() {
int iNum1 = Integer.parseInt(num1);
String hex1 = Integer.toHexString(iNum1);
return hex1;
public static String hexadecimalEquivalent2() {
int iNum2 = Integer.parseInt(num2);
String hex2 = Integer.toHexString(iNum2);
return hex2;
public double Round1() {
answer = Math.round(Double.parseDouble(num1));
return answer;
public double Round2() {
answer = Math.round(Double.parseDouble(num2));
return answer;
SimpleDateFormat format1 = new SimpleDateFormat("EEEE, dd MMMM yyyy");
Date now = new Date();
SimpleDateFormat format2 = new SimpleDateFormat("hh:mm a");
static Date timeIn = new Date();
public static long programRuntime() {
Date timeInD = timeIn;
long timeOutD = System.currentTimeMillis();
long msec = timeOutD - timeInD.getTime();
float timeHours = msec / 1000;
return (long) timeHours;
DecimalFormat decimals = new DecimalFormat("#0.00");
public String insertNameAndSurname() throws IOException{
boolean inputCorrect = false;
while (inputCorrect == false) {
while (nameSurname == null || nameSurname.length() == 0) {
for (int i = 0; i < nameSurname.length(); i++) {
if ((nameSurname.charAt(i) > 'a') && (nameSurname.charAt(i) < 'Z')){
inputCorrect = true;
else{
inputCorrect = false;
break;
try {
BufferedReader inStream = new BufferedReader (new InputStreamReader(System.in));
System.out.print("Please enter your name and surname: ");
nameSurname = inStream.readLine();
inputCorrect = true;
}catch (IOException ex) {
System.out.println("You did not enter your name and surname, " + nameSurname + " is not a name, please enter your name and surname :");
inputCorrect = false;
System.out.println("\nA warm welcome " + nameSurname + " ,todays date is: " + format1.format(now));
System.out.println("and the time is now exactly " + format2.format(timeIn) + ".");
return nameSurname;
public String inputNumber1() throws IOException {
boolean inputCorrect = false;
while (inputCorrect == false) {
try {
BufferedReader br = new BufferedReader (new InputStreamReader(System.in));
System.out.print("\nPlease enter a number you want to do a calculation with and hit <ENTER>: ");
num1 = br.readLine();
double number1 = Double.parseDouble(num1);
System.out.println("\nThe number you have entered is: " + number1);
inputCorrect = true;
} catch (NumberFormatException nfe) {
System.out.println("\nYou did not enter a valid number: " + "\""+ num1 + "\" is not a number!!");
inputCorrect = false;
return num1;
public String calculatorChoice() throws IOException {
System.out.println("Please select an option of what you would like to do with this number from the menu below and hit <ENTER>: ");
System.out.println("\n*********************************************");
System.out.println("---------------------------------------------");
System.out.println("Please select an option from the list below: ");
System.out.println("---------------------------------------------");
System.out.println("1 - Add");
System.out.println("2 - Subtract");
System.out.println("3 - Multiply");
System.out.println("4 - Divide (remainder included)");
System.out.println("5 - Maximum and minimum value of two numbers");
System.out.println("6 - Squareroot");
System.out.println("7 - Absolute value of numbers");
System.out.println("8 - Octal and Hexadecimal equivalent of numbers");
System.out.println("9 - Round numbers");
System.out.println("0 - Exit program");
System.out.println("**********************************************");
boolean inputCorrect = false;
while (inputCorrect == false) {
try {
BufferedReader inStream = new BufferedReader (new InputStreamReader(System.in));
System.out.print("Please enter your option and hit <ENTER>: ");
choice1 = inStream.readLine();
int c1 = Integer.parseInt(choice1);
System.out.println("\nYou have entered choice number: " + c1);
inputCorrect = true;
} catch (NumberFormatException nfe) {
System.out.println("You did not enter a valid choice number: " + "\""+ choice1 + "\" is not in the list!!");
inputCorrect = false;
return choice1;
public String inputNumber2() throws IOException {
boolean inputCorrect = false;
while (inputCorrect == false) {
try {
BufferedReader br2 = new BufferedReader (new InputStreamReader(System.in));
System.out.print("\nPlease enter another number you want to do the calculation with and hit <ENTER>: ");
num2 = br2.readLine();
double n2 = Double.parseDouble(num2);
System.out.println("\nThe second number you have entered is: " + n2);
System.out.println("\nYour numbers are: " + num1 + " and " + num2);
inputCorrect = true;
} catch (NumberFormatException nfe) {
System.out.println("You did not enter a valid number: " + "\""+ num2 + "\" is not a number!!");
inputCorrect = false;
return num2;
public int Calculator() {
int choice2 = (int) Double.parseDouble(choice1);
switch (choice2) {
case 1 :
Add();
System.out.print("The answer of " + num1 + " + " + num2 + " is: " + decimals.format(answer));
break;
case 2 :
Subtract();
System.out.print("The answer of " + num1 + " - " + num2 + " is: " + decimals.format(answer));
break;
case 3 :
Multiply();
System.out.print("The answer of " + num1 + " * " + num2 + " is: " + decimals.format(answer));
break;
case 4 :
Divide();
System.out.print("The answer of " + num1 + " / " + num2 + " is: " + decimals.format(answer));
Modulus();
System.out.print(" and the remainder is " + decimals.format(answer));
break;
case 5 :
maximumValue();
System.out.println("The maximum number between the numbers " + num1 + " and " + num2 + " is: " + decimals.format(answer));
minimumValue();
System.out.println("The minimum number between the numbers " + num1 + " and " + num2 + " is: " + decimals.format(answer));
break;
case 6 :
Squareroot1();
System.out.println("The squareroot of value " + num1 + " is: " + decimals.format(answer));
Squareroot2();
System.out.println("The squareroot of value " + num2 + " is: " + decimals.format(answer));
break;
case 7 :
absoluteNumber1();
System.out.println("The absolute number of " + num1 + " is: " + decimals.format(answer));
absoluteNumber2();
System.out.println("The absolute number of " + num2 + " is: " + decimals.format(answer));
break;
case 8 :
octalEquivalent1();
System.out.println("The octal equivalent of " + num1 + " is: " + octalEquivalent1());
octalEquivalent2();
System.out.println("The octal equivalent of " + num2 + " is: " + octalEquivalent2());
hexadecimalEquivalent1();
System.out.println("\nThe hexadecimal equivalent of " + num1 + " is: " + hexadecimalEquivalent1());
hexadecimalEquivalent2();
System.out.println("The hexadecimal equivalent of " + num2 + " is: " + hexadecimalEquivalent2());
break;
case 9 :
Round1();
System.out.println("The rounded number of " + num1 + " is: " + decimals.format(answer));
Round2();
System.out.println("The rounded number of " + num2 + " is: " + decimals.format(answer));
break;
case 0 :
if (choice2 == 0) {
System.exit(1);
break;
return choice2;
public String anotherCalculation() throws IOException {
boolean inputCorrect = false;
while (inputCorrect == false) {
try {
BufferedReader br3 = new BufferedReader (new InputStreamReader(System.in));
System.out.print("\nWould you like to do another calculation? Y/N ");
more = br3.readLine();
String s1 = "y";
String s2 = "Y";
if (more.equals(s1) || more.equals(s2)) {
inputCorrect = true;
while (inputCorrect = true){
inputNumber1();
System.out.println("");
calculatorChoice();
System.out.println("");
inputNumber2();
System.out.println("");
Calculator();
System.out.println("");
anotherCalculation();
System.out.println("");
inputCorrect = true;
} else {
System.out.println("\n" + nameSurname + " thank you for using this program, you have used this program for: " + decimals.format(programRuntime()) + " seconds");
System.out.println("the program will now exit, Goodbye.");
System.exit(0);
} catch (IOException ex){
System.out.println("You did not enter a valid answer: " + "\""+ more + "\" is not in the list!!");
inputCorrect = false;
return more;
public static void main(String[] args) throws IOException {
Project p1 = new Project();
p1.insertNameAndSurname();
System.out.println("");
p1.inputNumber1();
System.out.println("");
p1.calculatorChoice();
System.out.println("");
p1.inputNumber2();
System.out.println("");
p1.Calculator();
System.out.println("");
p1.anotherCalculation();
System.out.println("");
{code}
*Can you please run my code for yourself and have a look at how this program is constructed*
*and give me ANY feedback on how I can better this code(program) or if I've done anything wrong from your point of view.*
Your help will be much appreciated.
Thanks in advanceSmirre wrote:
Now my question is this: How can I restrict the user to only enter 'letters' (and spaces of course) but allow NO numbers for his/her surname??You cannot restrict the user. It is a sad fact in programming that the worst bug always sits in front of the Computer.
What you could do is checking the input string for numbers. If it contains numbers, just reprompt for the Name.
AND you might want to ask yourself why the heck a calculator needs to know the users Name. -
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db
kap wrote:
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http://www.uni-koeln.de/ew-fak/Mathe/Projekte/VisuPro/pythagoras/pythagoras.html
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a b
---------------------------------------+
| | |
a| I | II |
| | |
---------------------------------------+
| | |
| | |
| | |
| | |
| | |
b| IV | III |
| | |
| | |
| | |
| | |
| | |
| | |
---------------------------------------+It almost goes without saying that I+II+III+IV == (a+b)^2, and II == IV == a*b,
I == a*a and III == b*b, showing that (a+b)^2 == a^2+a*b+a*b+b^2.
I hope the following sketch makes sense, stand back, ASCII art alert again: a b
---------------------------------------+
| . VI |
| . . |a
| V . |
| +
| |
| . |
b| . |
| |
| IX |
| . |
| . |b
| |
+ |
| . |
a| . . VII |
| VIII . |
---------------------------------------+
a bThe total area equals (a+b)^2 again and equals the sum of the smaller areas:
(a+b)^2 == V+VI+VII+VIII+IX. Let area IX be c^2 for whatever c may be.
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Given this fundamental result, the others can easily be derived from this one,
or did I answer a question you didn't ask?
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kilometresDriven,
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Here's the update:
import javax.swing.JOptionPane;
public class Prog1
public static void main(String args[])
String name;
double kmDriven;
double litresUsed;
double pricePaidForGas;
double priceOfALiter;
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pricePaidForGas = Double.parseDouble (input);
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b = ((litresUsed/kmDriven)*100)*priceOfALiter);
c = (kmDriven/1.609)
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System.out.println("Cost of driving 100km" + b);
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System.exit(0);
Comments please.
Thanks in advance -
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Hi all,
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After year: 1 Amount is: 210.00
After year: 2 Amount is: 220.50
After year: 3 Amount is: 231.53
After year: 4 Amount is: 243.10
After year: 5 Amount is: 255.26
After year: 6 Amount is: 268.02
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After year: 8 Amount is: 295.49
After year: 9 Amount is: 310.27
After year: 10 Amount is: 325.78
After year: 11 Amount is: 342.07
After year: 12 Amount is: 359.17
After year: 13 Amount is: 377.13
After year: 14 Amount is: 395.99
After year: 15 Amount is: 415.79
After year: 16 Amount is: 436.57
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import javax.swing.*;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.lang.Math;
import java.text.DecimalFormat;
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JTextField amountText = new JTextField(5);
JLabel yearsLabel = new JLabel("Please enter the numbers of years:");
JTextField yearstext = new JTextField(5);
JButton drawButton = new JButton("Draw Graph");
public CompoundInterestProgram() {
super("Compound Interest Program");
setSize(500, 500);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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yearstext.addActionListener(this);
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panel.add(amountText);
panel.add(yearsLabel);
yearsLabel.setToolTipText("Range of years must be 1 - 25!");
panel.add(yearstext);
panel.add(drawButton);
add(panel);
setVisible(true);
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@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
class Account {
double balance = 0;
double interest = 0.05;
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balance = 0;
interest = 0.05;
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balance = deposit;
interest = 0.05;
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return balance * Math.pow((1 + interest), year) - balance;
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return balance;
class GraphPanel extends JPanel {
public GraphPanel() {
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Graphics2D g2 = (Graphics2D)g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2.setColor(Color.red);
}Your help would be much appreciated.
Thanks in advance.watertownjordan wrote:
http://www.jgraph.com/jgraph.html
The above is also good.Sorry but you need to look a bit more closely at URLs that you cite. What the OP wants is a chart (as in X against Y) not a graph (as in links and nodes) . 'jgraph' deals with links and nodes.
The best free charting library that I know of is JFreeChart from www.jfree.org. -
Need help, MMC tree got deleted, very urgent.
Hi,
My sap MMC tree, got deleted in the server. I have been trying to restore since 2 days and couldnt succeed, please help me.
1) i have uncared the sapmmc.sar from Kernal\NT\I386\MMC\sapmmc.sar file
2) i got about 7 files, in which there is one sapmmc file i have tried to double click it, n check but no go.
3) i also tried to run the Sapstartsrv.exe file and fill in up the values in pop up window. & filled up the following values :-
SID: DEV
NR: 00
StartProfile: (entire start profile path given)
user: devadm
passwd; (given)
- but it says "the account name is invalid or does not exist or the password is invalid for account name specified"/
- no go in both the cases.
Please need help very urgent.
Regards,
Satish.siva,
I am getting same error since 2 days
SID: DEV
NR: 00
Start Profile: (entire start profile path)
User: <hostname>/devadm
passwd: ****
Error:
cannot install service
create service failed:421
The account name is invalid or doesnot exist, or the passwd is invalid for the account name specified.
Edited by: satish c on Jun 4, 2008 11:12 AM -
Need help with JTextArea and Scrolling
import java.awt.*;
import java.awt.event.*;
import java.text.DecimalFormat;
import javax.swing.*;
public class MORT_RETRY extends JFrame implements ActionListener
private JPanel keypad;
private JPanel buttons;
private JTextField lcdLoanAmt;
private JTextField lcdInterestRate;
private JTextField lcdTerm;
private JTextField lcdMonthlyPmt;
private JTextArea displayArea;
private JButton CalculateBtn;
private JButton ClrBtn;
private JButton CloseBtn;
private JButton Amortize;
private JScrollPane scroll;
private DecimalFormat calcPattern = new DecimalFormat("$###,###.00");
private String[] rateTerm = {"", "7years @ 5.35%", "15years @ 5.5%", "30years @ 5.75%"};
private JComboBox rateTermList;
double interest[] = {5.35, 5.5, 5.75};
int term[] = {7, 15, 30};
double balance, interestAmt, monthlyInterest, monthlyPayment, monPmtInt, monPmtPrin;
int termInMonths, month, termLoop, monthLoop;
public MORT_RETRY()
Container pane = getContentPane();
lcdLoanAmt = new JTextField();
lcdMonthlyPmt = new JTextField();
displayArea = new JTextArea();//DEFINE COMBOBOX AND SCROLL
rateTermList = new JComboBox(rateTerm);
scroll = new JScrollPane(displayArea);
scroll.setSize(600,170);
scroll.setLocation(150,270);//DEFINE BUTTONS
CalculateBtn = new JButton("Calculate");
ClrBtn = new JButton("Clear Fields");
CloseBtn = new JButton("Close");
Amortize = new JButton("Amortize");//DEFINE PANEL(S)
keypad = new JPanel();
buttons = new JPanel();//DEFINE KEYPAD PANEL LAYOUT
keypad.setLayout(new GridLayout( 4, 2, 5, 5));//SET CONTROLS ON KEYPAD PANEL
keypad.add(new JLabel("Loan Amount$ : "));
keypad.add(lcdLoanAmt);
keypad.add(new JLabel("Term of loan and Interest Rate: "));
keypad.add(rateTermList);
keypad.add(new JLabel("Monthly Payment : "));
keypad.add(lcdMonthlyPmt);
lcdMonthlyPmt.setEditable(false);
keypad.add(new JLabel("Amortize Table:"));
keypad.add(displayArea);
displayArea.setEditable(false);//DEFINE BUTTONS PANEL LAYOUT
buttons.setLayout(new GridLayout( 1, 3, 5, 5));//SET CONTROLS ON BUTTONS PANEL
buttons.add(CalculateBtn);
buttons.add(Amortize);
buttons.add(ClrBtn);
buttons.add(CloseBtn);//ADD ACTION LISTENER
CalculateBtn.addActionListener(this);
ClrBtn.addActionListener(this);
CloseBtn.addActionListener(this);
Amortize.addActionListener(this);
rateTermList.addActionListener(this);//ADD PANELS
pane.add(keypad, BorderLayout.NORTH);
pane.add(buttons, BorderLayout.SOUTH);
pane.add(scroll, BorderLayout.CENTER);
addWindowListener( new WindowAdapter()
public void windowClosing(WindowEvent e)
System.exit(0);
public void actionPerformed(ActionEvent e)
String arg = lcdLoanAmt.getText();
int combined = Integer.parseInt(arg);
if (e.getSource() == CalculateBtn)
try
JOptionPane.showMessageDialog(null, "Got try here", "Error", JOptionPane.ERROR_MESSAGE);
catch(NumberFormatException ev)
JOptionPane.showMessageDialog(null, "Got here", "Error", JOptionPane.ERROR_MESSAGE);
if ((e.getSource() == CalculateBtn) && (arg != null))
try{
if ((e.getSource() == CalculateBtn) && (rateTermList.getSelectedIndex() == 1))
monthlyInterest = interest[0] / (12 * 100);
termInMonths = term[0] * 12;
monthlyPayment = combined * (monthlyInterest / (1 - (Math.pow (1 + monthlyInterest, -termInMonths))));
lcdMonthlyPmt.setText(calcPattern.format(monthlyPayment));
if ((e.getSource() == CalculateBtn) && (rateTermList.getSelectedIndex() == 2))
monthlyInterest = interest[1] / (12 * 100);
termInMonths = term[1] * 12;
monthlyPayment = combined * (monthlyInterest / (1 - (Math.pow (1 + monthlyInterest, -termInMonths))));
lcdMonthlyPmt.setText(calcPattern.format(monthlyPayment));
if ((e.getSource() == CalculateBtn) && (rateTermList.getSelectedIndex() == 3))
monthlyInterest = interest[2] / (12 * 100);
termInMonths = term[2] * 12;
monthlyPayment = combined * (monthlyInterest / (1 - (Math.pow (1 + monthlyInterest, -termInMonths))));
lcdMonthlyPmt.setText(calcPattern.format(monthlyPayment));
catch(NumberFormatException ev)
JOptionPane.showMessageDialog(null, "Invalid Entry!\nPlease Try Again", "Error", JOptionPane.ERROR_MESSAGE);
} //IF STATEMENTS FOR AMORTIZATION
if ((e.getSource() == Amortize) && (rateTermList.getSelectedIndex() == 1))
loopy(7, 5.35);
if ((e.getSource() == Amortize) && (rateTermList.getSelectedIndex() == 2))
loopy(15, 5.5);
if ((e.getSource() == Amortize) && (rateTermList.getSelectedIndex() == 3))
loopy(30, 5.75);
if (e.getSource() == ClrBtn)
rateTermList.setSelectedIndex(0);
lcdLoanAmt.setText(null);
lcdMonthlyPmt.setText(null);
displayArea.setText(null);
if (e.getSource() == CloseBtn)
System.exit(0);
private void loopy(int lTerm,double lInterest)
double total, monthly, monthlyrate, monthint, monthprin, balance, lastint, paid;
int amount, months, termloop, monthloop;
String lcd2 = lcdLoanAmt.getText();
amount = Integer.parseInt(lcd2);
termloop = 1;
paid = 0.00;
monthlyrate = lInterest / (12 * 100);
months = lTerm * 12;
monthly = amount *(monthlyrate/(1-Math.pow(1+monthlyrate,-months)));
total = months * monthly;
balance = amount;
while (termloop <= lTerm)
displayArea.setCaretPosition(0);
displayArea.append("\n");
displayArea.append("Year " + termloop + " of " + lTerm + ": payments\n");
displayArea.append("\n");
displayArea.append("Month\tMonthly\tPrinciple\tInterest\tBalance\n");
monthloop = 1;
while (monthloop <= 12)
monthint = balance * monthlyrate;
monthprin = monthly - monthint;
balance -= monthprin;
paid += monthly;
displayArea.setCaretPosition(0);
displayArea.append(monthloop + "\t" + calcPattern.format(monthly) + "\t" + calcPattern.format(monthprin) + "\t");
displayArea.append(calcPattern.format(monthint) + "\t" + calcPattern.format(balance) + "\n");
monthloop ++;
termloop ++;
public static void main(String args[])
MORT_RETRY f = new MORT_RETRY();
f.setTitle("MORTGAGE PAYMENT CALCULATOR");
f.setBounds(600, 600, 500, 500);
f.setLocationRelativeTo(null);
f.setVisible(true);
}need help with displaying the textarea correctly and the scroll bar please.
Message was edited by:
new2this2020What's the problem you're having ???
PS. -
first of all, who has heard of the game called zuul? It is a very boring text based game I am currently having the pleasure of improving.
Basically, you are in a room, that is connected to a bunch of other rooms and depending on the room you are in, you have different exists and different items in the room.
The goal is to navigate through the collection of Rooms and there is no real win condition, It is more for learning then for actually playing.
You navigate by a series of commands such as: go (direction)( as in "direction of exit", NSEW), quit, a few other odd bits.
ex: go south, quit, go west etc
The game has several classes: Game, Command, CommandWords, Item, Parser, Room.
Obviously Game is the main central head conch, (it is not the super class.)
Game makes use of Item, Room, Parser, and Command.
Item is the class that deals with the number of items in the Room.
Room is the class that deals with the rooms the player will navigate to and from.
Command reads in the commands such as "go-(direction)" or "quit".
Parser makes everybody understand each other by using both Command and CommandWords.
CommandWords is a list of commands such as "go", "quit" etc.
The problem I am having right now is to allow a player to move through the rooms while holding a certain item. The item has to come from the rooms and the player should be able to drop it.
So I have to add two new commands: take and drop. The problem is that I have been asked to do this without creating a new class. Otherwise I would have just created class Player and be done with it. So I am trying to figure out whose responsibility should it be to take care of the take and drop command. I have done some preliminary work in class Game, it is the take(Command command) and drop() methods.
I have also a few questions concerning other aspects of the project, I have listed their locations here:
1. The take() method in class Game, the for-each loop, a complier error with ArrayList
2. class Parser, a general question about the string tokenzier
If you want to see how the game is suppose to run, just comment out the bodies of take() and drop(). Not the declaration. Everything else works.
I shall now provide the code to all classes. I wish there were an option to upload a zip file, then you don't have to read through all the codes and copy&paste all the codes. The complier I am using is BlueJ. And the SDK version is 1.6. With the exception of class Game, everything else can be assumed to be error free.
Thank you for your time,
Davy
class Game
import java.util.*;
* This class is the main class of the "World of Zuul" application.
* "World of Zuul" is a very simple, text based adventure game. Users
* can walk around some scenery. That's all. It should really be extended
* to make it more interesting!
* To play this game, create an instance of this class and call the "play"
* method.
* This main class creates and initialises all the others: it creates all
* rooms, creates the parser and starts the game. It also evaluates and
* executes the commands that the parser returns.
* @author Michael Kolling and David J. Barnes
* @version 2006.03.30
public class Game
private Parser parser;
private Room currentRoom;
private Room previousRoom;
private Stack<Room> previousRooms;
* Create the game and initialise its internal map.
public Game()
createRooms();
parser = new Parser();
* Create all the rooms and link their exits together.
private void createRooms()
Room outside, theatre, pub, lab, office;
// create the rooms
outside = new Room("outside the main entrance of the university");
theatre = new Room("in a lecture theatre");
pub = new Room("in the campus pub");
lab = new Room("in a computing lab");
office = new Room("in the computing admin office");
// create some items
Item desk, chair, beer, podium, tree;
desk = new Item("desk", "student desk",10);
chair = new Item("chair", "student chair",5);
beer = new Item("beer", "glass of beer", 0.5);
podium = new Item("podium", "lecture podium", 100);
tree = new Item("tree", "a tree", 500.5);
// put items in some of the rooms
outside.addItem(tree);
theatre.addItem(desk);
theatre.addItem(chair);
theatre.addItem(podium);
pub.addItem(beer);
pub.addItem(beer);
office.addItem(desk);
lab.addItem(chair);
lab.addItem(beer);
// initialise room exits
outside.setExit("east", theatre);
outside.setExit("south", lab);
outside.setExit("west", pub);
theatre.setExit("west", outside);
pub.setExit("east", outside);
lab.setExit("north", outside);
lab.setExit("east", office);
office.setExit("west", lab);
currentRoom = outside; // start game outside
previousRooms = new Stack<Room>(); // no rooms on the stack
previousRoom = null;
* Main play routine. Loops until end of play.
public void play()
printWelcome();
// Enter the main command loop. Here we repeatedly read commands and
// execute them until the game is over.
boolean finished = false;
while (! finished) {
Command command = parser.getCommand();
finished = processCommand(command);
System.out.println("Thank you for playing. Good bye.");
* Print out the opening message for the player.
private void printWelcome()
System.out.println();
System.out.println("Welcome to the World of Zuul!");
System.out.println("World of Zuul is a new, incredibly boring adventure game.");
System.out.println("Type 'help' if you need help.");
System.out.println();
System.out.println(currentRoom.getLongDescription());
* Given a command, process (that is: execute) the command.
* @param command The command to be processed.
* @return true If the command ends the game, false otherwise.
private boolean processCommand(Command command)
boolean wantToQuit = false;
if(command.isUnknown()) {
System.out.println("I don't know what you mean...");
return false;
String commandWord = command.getCommandWord();
if (commandWord.equals("help")) {
printHelp();
else if (commandWord.equals("go")) {
goRoom(command);
else if (commandWord.equals("look")) {
look(command);
else if (commandWord.equals("eat")) {
eat(command);
else if (commandWord.equals("back")) {
back(command);
else if (commandWord.equals("stackBack")) {
stackBack(command);
else if (commandWord.equals("take")){
take(command);
else if (commandWord.equals("drop")) {
drop(command);
else if (commandWord.equals("quit")) {
wantToQuit = quit(command);
// else command not recognised.
return wantToQuit;
// implementations of user commands:
* Print out some help information.
* Here we print some stupid, cryptic message and a list of the
* command words.
private void printHelp()
System.out.println("You are lost. You are alone. You wander");
System.out.println("around at the university.");
System.out.println();
System.out.println("Your command words are:");
System.out.println(parser.getCommands());
* Try to go to one direction. If there is an exit, enter the new
* room, otherwise print an error message.
* @param command The command entered.
private void goRoom(Command command)
if(!command.hasSecondWord()) {
// if there is no second word, we don't know where to go...
System.out.println("Go where?");
return;
String direction = command.getSecondWord();
// Try to leave current room.
Room nextRoom = currentRoom.getExit(direction);
if (nextRoom == null) {
System.out.println("There is no door!");
else {
previousRooms.push(currentRoom);
previousRoom = currentRoom;
currentRoom = nextRoom;
System.out.println(currentRoom.getLongDescription());
* "Look" was entered.
* @param command The command entered.
private void look(Command command)
if(command.hasSecondWord()) {
System.out.println("Look what?");
return;
System.out.println(currentRoom.getLongDescription());
* "Eat" was entered.
* @param command The command entered.
private void eat(Command command)
if(command.hasSecondWord()) {
System.out.println("Eat what?");
return;
System.out.println("You have eaten and are no longer hungry!");
* "Back" was entered.
* @param command The command entered.
private void back(Command command)
if(command.hasSecondWord()) {
System.out.println("Back what?");
return;
if (previousRoom==null) {
System.out.println("Can't go back.");
return;
// push current room on stack (for stackBack)
previousRooms.push(currentRoom);
// swap current and previous rooms (for back)
Room temp = currentRoom;
currentRoom = previousRoom;
previousRoom = temp;
// You could replace the previous three lines with the following
// which use the stack to get the previous room
// but note that this makes "back" dependent on "stackBack".
// (If you do it this way you no longer need "temp".
// currentRoom = previousRoom;
// previousRoom = previousRooms.peek();
System.out.println("You have gone back:");
System.out.println(currentRoom.getLongDescription());
* "StackBack" was entered.
* @param command The command entered.
private void stackBack(Command command)
if(command.hasSecondWord()) {
System.out.println("StackBack what?");
return;
if (previousRooms.isEmpty()) {
System.out.println("Can't go StackBack.");
return;
// set previous room (for "back")
previousRoom = currentRoom;
// set new current room (using stack)
currentRoom = previousRooms.pop();
System.out.println("You have gone StackBack:");
System.out.println(currentRoom.getLongDescription());
* allows a player to take something from the room
* @param command
private void take(Command command){
String a;
a=command.getSecondWord();
for (Item i:currentRoom.items()) { //a for each loop, since the room's items are kept in a list, but this gives a //compiler error, it doesn't work because items is an ArrayList, but I need a way to pick up the item. I thought that if //given the item's name, I could run a check through the room's ArrayList of items via a for-each loop
if (a==i.getName()) {
removeItem (i);
return;
* allows a player to drop an item in the room
* @param command
private void drop(Command command) {
if(command.hasSecondWord()) {
System.out.println("drop what?");
return;
//add item method is suppose to be used here
* "Quit" was entered. Check the rest of the command to see
* whether we really quit the game.
* @param command The command entered.
* @return true, if this command quits the game, false otherwise.
private boolean quit(Command command)
if(command.hasSecondWord()) {
System.out.println("Quit what?");
return false;
else {
return true; // signal that we want to quit
}class Room
import java.util.*;
* Class Room - a room in an adventure game.
* This class is part of the "World of Zuul" application.
* "World of Zuul" is a very simple, text based adventure game.
* A "Room" represents one location in the scenery of the game. It is
* connected to other rooms via exits. For each existing exit, the room
* stores a reference to the neighboring room.
* @author Michael Kolling and David J. Barnes
* @version 2006.03.30
* @author L.S. Marshall
* @version 1.03 October 25, 2007
public class Room
private String description;
private HashMap<String, Room> exits; // stores exits of this room.
// The items in the room
private ArrayList<Item> items;
* Create a room described "description". Initially, it has
* no exits. "description" is something like "a kitchen" or
* "an open court yard".
* @param description The room's description.
public Room(String description)
this.description = description;
exits = new HashMap<String, Room>();
items = new ArrayList<Item>();
* Define an exit from this room.
* @param direction The direction of the exit.
* @param neighbor The room to which the exit leads.
public void setExit(String direction, Room neighbor)
exits.put(direction, neighbor);
* Gives a short description of the room.
* @return The short description of the room
* (the one that was defined in the constructor).
public String getShortDescription()
return description;
* Return a description of the items in the room
* (Note that this could be combined with getLongDescription, but
* this way shows better cohesion, and could avoid code duplication
* for future enhancements.)
* @return A description of the items in this room
public String getItemsDescription()
String s = new String();
if (items.size()==0)
s += "There are no items in this room.\n";
else {
s += "The item(s) in the room are:\n";
for (Item item : items ) {
s += item.getInfo() + "\n";
return s;
* Return a description of the room in the form:
* You are in the kitchen.
* Exits: north west
* and information on the items in the room
* @return A long description of this room
public String getLongDescription()
String s = "You are " + description + ".\n" + getExitString() + "\n";
s += getItemsDescription();
return s;
* Return a string describing the room's exits, for example
* "Exits: north west".
* @return Details of the room's exits.
private String getExitString()
String returnString = "Exits:";
Set<String> keys = exits.keySet();
for(String exit : keys) {
returnString += " " + exit;
return returnString;
* Return the room that is reached if we go from this room in direction
* "direction". If there is no room in that direction, return null.
* @param direction The exit's direction.
* @return The room in the given direction.
public Room getExit(String direction)
return exits.get(direction);
* Adds the given item to the room.
* @param item The item to be added
public void addItem(Item item)
items.add(item);
* Removes an item if the person picks it up
* @param item the item to be removed
public void removeItem (Item item)
items.remove(item);
}class Item
* This represents an item in a room in zuul.
* @author L.S. Marshall
* @version 1.00 October 9, 2007
public class Item
// The description of the item
private String description;
// The weight of the item
private double weight;
private String name;
* Constructor for objects of class Item
* @param desc description of the item
* @param weight the weight of the item
public Item(String name, String desc, double weight)
description = desc;
this.weight = weight;
this.name=name;
* Returns a string representing this item
* @return string representing this item
public String getInfo()
return ("Item: " + description + ", weighs " + weight + ".");
* returns the name of the string
* @ return the name in a string
public String getName()
return ( name );
}class Command
* This class is part of the "World of Zuul" application.
* "World of Zuul" is a very simple, text based adventure game.
* This class holds information about a command that was issued by the user.
* A command currently consists of two strings: a command word and a second
* word (for example, if the command was "take map", then the two strings
* obviously are "take" and "map").
* The way this is used is: Commands are already checked for being valid
* command words. If the user entered an invalid command (a word that is not
* known) then the command word is <null>.
* If the command had only one word, then the second word is <null>.
* @author Michael Kolling and David J. Barnes
* @version 2006.03.30
public class Command
private String commandWord;
private String secondWord;
* Create a command object. First and second word must be supplied, but
* either one (or both) can be null.
* @param firstWord The first word of the command. Null if the command
* was not recognised.
* @param secondWord The second word of the command.
public Command(String firstWord, String secondWord)
commandWord = firstWord;
this.secondWord = secondWord;
* Return the command word (the first word) of this command. If the
* command was not understood, the result is null.
* @return The command word.
public String getCommandWord()
return commandWord;
* @return The second word of this command. Returns null if there was no
* second word.
public String getSecondWord()
return secondWord;
* @return true if this command was not understood.
public boolean isUnknown()
return (commandWord == null);
* @return true if the command has a second word.
public boolean hasSecondWord()
return (secondWord != null);
}class Parser
import java.util.Scanner;
import java.util.StringTokenizer;
//I read the documentation for String Tokenizer, and I have a few questions relating to a pet project of mine. The //project is to build a boolean algebra simplifer. I would give it a boolean expression and it will simplify it for me.
//Which is very similar to what this class does. The documentation mentioned a delimiter for separating the tokens.
//yet I see none here, is the delimiter at default, the space between the words? and if I were to set manually //delimiters, how do I do that?
//Once I read in the string, should it be Parser's job to execute the boolean simplification part? According the RDD,
//it shouldn't, but doing so would keep everything in fewer classes and therefore easier to manage, wouldn't it?
* This class is part of the "World of Zuul" application.
* "World of Zuul" is a very simple, text based adventure game.
* This parser reads user input and tries to interpret it as an "Adventure"
* command. Every time it is called it reads a line from the terminal and
* tries to interpret the line as a two word command. It returns the command
* as an object of class Command.
* The parser has a set of known command words. It checks user input against
* the known commands, and if the input is not one of the known commands, it
* returns a command object that is marked as an unknown command.
* @author Michael Kolling and David J. Barnes
* @version 2006.03.30
* @author L.S. Marshall
* @version 1.01 October 9, 2007
public class Parser
private CommandWords commands; // holds all valid command words
private Scanner reader; // source of command input
* Create a parser to read from the terminal window.
public Parser()
commands = new CommandWords();
reader = new Scanner(System.in);
* Command returns the command typed by the user.
* @return The next command from the user.
public Command getCommand()
String inputLine; // will hold the full input line
String word1 = null;
String word2 = null;
System.out.print("> "); // print prompt
inputLine = reader.nextLine();
// Find up to two words on the line.
Scanner tokenizer = new Scanner(inputLine);
if(tokenizer.hasNext()) {
word1 = tokenizer.next(); // get first word
if(tokenizer.hasNext()) {
word2 = tokenizer.next(); // get second word
// note: we just ignore the rest of the input line.
// Now check whether this word is known. If so, create a command
// with it. If not, create a "null" command (for unknown command).
if(commands.isCommand(word1)) {
return new Command(word1, word2);
else {
return new Command(null, word2);
* Returns a list of valid command words.
* @string list of valid command words
public String getCommands()
return commands.getCommandList();
}class CommandWords
* This class is part of the "World of Zuul" application.
* "World of Zuul" is a very simple, text based adventure game.
* This class holds an enumeration of all command words known to the game.
* It is used to recognise commands as they are typed in.
* @author Michael Kolling and David J. Barnes
* @version 2006.03.30
* @author L.S. Marshall
* @version 1.01 October 9, 2007
public class CommandWords
// a constant array that holds all valid command words
private static final String[] validCommands = {
"go", "quit", "help", "look", "eat", "back", "stackBack",
"take", "drop",
* Constructor - initialise the command words.
public CommandWords()
// nothing to do at the moment...
* Check whether a given String is a valid command word.
* @param aString the command word
* @return true if it is, false if it isn't.
public boolean isCommand(String aString)
for(int i = 0; i < validCommands.length; i++) {
if(validCommands.equals(aString))
return true;
// if we get here, the string was not found in the commands
return false;
* Return a string containing all valid commands.
* @return string of all valid commands
public String getCommandList()
String s="";
for(String command: validCommands) {
s += command + " ";
return s;
right, sorry, that was thoughtless of me.
class Parser
import java.util.Scanner;
import java.util.StringTokenizer;
//I read the documentation for String Tokenizer, and I have a few questions relating to a pet project of mine. The //project is to build a boolean algebra simplifer. I would give it a boolean expression and it will simplify it for me.
//Which is very similar to what this class does. The documentation mentioned a delimiter for separating the tokens.
//yet I see none here, is the delimiter at default, the space between the words? and if I were to set manually //delimiters, how do I do that?
//Once I read in the string, should it be Parser's job to execute the boolean simplification part? According the RDD,
//it shouldn't, but doing so would keep everything in fewer classes and therefore easier to manage, wouldn't it?
* This class is part of the "World of Zuul" application.
* "World of Zuul" is a very simple, text based adventure game.
* This parser reads user input and tries to interpret it as an "Adventure"
* command. Every time it is called it reads a line from the terminal and
* tries to interpret the line as a two word command. It returns the command
* as an object of class Command.
* The parser has a set of known command words. It checks user input against
* the known commands, and if the input is not one of the known commands, it
* returns a command object that is marked as an unknown command.
* @author Michael Kolling and David J. Barnes
* @version 2006.03.30
* @author L.S. Marshall
* @version 1.01 October 9, 2007
public class Parser
private CommandWords commands; // holds all valid command words
private Scanner reader; // source of command input
* Create a parser to read from the terminal window.
public Parser()
commands = new CommandWords();
reader = new Scanner(System.in);
* Command returns the command typed by the user.
* @return The next command from the user.
public Command getCommand()
String inputLine; // will hold the full input line
String word1 = null;
String word2 = null;
System.out.print("> "); // print prompt
inputLine = reader.nextLine();
// Find up to two words on the line.
Scanner tokenizer = new Scanner(inputLine);
if(tokenizer.hasNext()) {
word1 = tokenizer.next(); // get first word
if(tokenizer.hasNext()) {
word2 = tokenizer.next(); // get second word
// note: we just ignore the rest of the input line.
// Now check whether this word is known. If so, create a command
// with it. If not, create a "null" command (for unknown command).
if(commands.isCommand(word1)) {
return new Command(word1, word2);
else {
return new Command(null, word2);
* Returns a list of valid command words.
* @string list of valid command words
public String getCommands()
return commands.getCommandList();
} -
I need help with resetting my ichat. When i try to login now it wont let me... it says "AOL Instant Messenger password" and then "iChat can't log in to ... because your login ID or password is incorrect. How do I reset this if I cant log in? When I try to press online the same thing pops up and I have no way of logging in or asking for help.
Hi,
iChat (it would help to know which version) can accept Apple IDs as valid AIM Screen Names.
However if you have iChat 5 or earlier you cannot use ones ending in @me.com or @icloud.com issued by iCloud. (they can be used in iChat 6 or Messages as these versions make a double login to AIM and Apple to allow the use of the password).
In addition if you are using an Apple ID for an AIM Screen Name the password still needs to keep to the 16 character limit that AIM has.
AN @mac.com name can be used on any version of iChat (Until the 30th June 2014)
As it does not need a double check with Apple you can use it to log in to the AIM Web pages
Login here with an AIM Name registered at AIM or and @mac.com name and see if you get any suspended account messages.
Sometimes account can be suspended. Usually because something has triggered the "Unusual Activity" item.
About a year ago many @mac.com users that travelled out of their own country found themselves suspended when they got home.
If the Name checks out of if an Apple ID the password in known to be 16 characters or Less then do this:-
In Lion upwards open a Finder Window and use the Go Menu whilst holding down the ALT key.
Select the Library that appears in the menu list.
Navigate to Preferences.
(If you have version earlier than Lion the just navigate to ~/Library/Preferences (that's the Library in you Home - Little House icon - folder)
Fnd com.apple.ichat.aim.plist (even if you are using Messages)
Drag the file to the Trash and Restart the app.
7:39 pm Thursday; May 29, 2014
iMac 2.5Ghz i5 2011 (Mavericks 10.9)
G4/1GhzDual MDD (Leopard 10.5.8)
MacBookPro 2Gb (Snow Leopard 10.6.8)
Mac OS X (10.6.8),
Couple of iPhones and an iPad -
Need help with conditional query
guys this is just an extension of this post that Frank was helping me with. im reposting because my requirements have changes slightly and im having a hell of a time trying to modify the query.
here is the previous post.
need help with query that can look data back please help.
CREATE TABLE "FGL"
"FGL_GRNT_CODE" VARCHAR2(60),
"FGL_FUND_CODE" VARCHAR2(60),
"FGL_ACCT_CODE" VARCHAR2(60),
"FGL_ORGN_CODE" VARCHAR2(60),
"FGL_PROG_CODE" VARCHAR2(60),
"FGL_GRNT_YEAR" VARCHAR2(60),
"FGL_PERIOD" VARCHAR2(60),
"FGL_BUDGET" VARCHAR2(60)
)data
Insert into FGL (FGL_GRNT_CODE,FGL_FUND_CODE,FGL_ACCT_CODE,FGL_ORGN_CODE,FGL_PROG_CODE,FGL_GRNT_YEAR,FGL_PERIOD,FGL_BUDGET) values ('240055','240055','7600','4730','02','11','00','400');
Insert into FGL (FGL_GRNT_CODE,FGL_FUND_CODE,FGL_ACCT_CODE,FGL_ORGN_CODE,FGL_PROG_CODE,FGL_GRNT_YEAR,FGL_PERIOD,FGL_BUDGET) values ('240055','240055','7240','4730','02','10','1','100');
Insert into FGL (FGL_GRNT_CODE,FGL_FUND_CODE,FGL_ACCT_CODE,FGL_ORGN_CODE,FGL_PROG_CODE,FGL_GRNT_YEAR,FGL_PERIOD,FGL_BUDGET) values ('240055','240055','7240','4730','02','10','1','0');
Insert into FGL (FGL_GRNT_CODE,FGL_FUND_CODE,FGL_ACCT_CODE,FGL_ORGN_CODE,FGL_PROG_CODE,FGL_GRNT_YEAR,FGL_PERIOD,FGL_BUDGET) values ('240055','240055','7600','4730','02','11','1','400');
Insert into FGL (FGL_GRNT_CODE,FGL_FUND_CODE,FGL_ACCT_CODE,FGL_ORGN_CODE,FGL_PROG_CODE,FGL_GRNT_YEAR,FGL_PERIOD,FGL_BUDGET) values ('360055','360055','7200','4730','02','10','1','400');
Insert into FGL (FGL_GRNT_CODE,FGL_FUND_CODE,FGL_ACCT_CODE,FGL_ORGN_CODE,FGL_PROG_CODE,FGL_GRNT_YEAR,FGL_PERIOD,FGL_BUDGET) values ('360055','360055','7600','4730','02','10','1','400');
Insert into FGL (FGL_GRNT_CODE,FGL_FUND_CODE,FGL_ACCT_CODE,FGL_ORGN_CODE,FGL_PROG_CODE,FGL_GRNT_YEAR,FGL_PERIOD,FGL_BUDGET) values ('240055','240055','7240','4730','02','10','14','200');
Insert into FGL (FGL_GRNT_CODE,FGL_FUND_CODE,FGL_ACCT_CODE,FGL_ORGN_CODE,FGL_PROG_CODE,FGL_GRNT_YEAR,FGL_PERIOD,FGL_BUDGET) values ('240055','240055','7600','4730','02','10','14','100');
Insert into FGL (FGL_GRNT_CODE,FGL_FUND_CODE,FGL_ACCT_CODE,FGL_ORGN_CODE,FGL_PROG_CODE,FGL_GRNT_YEAR,FGL_PERIOD,FGL_BUDGET) values ('240055','240055','7240','4730','02','10','14','200');
Insert into FGL (FGL_GRNT_CODE,FGL_FUND_CODE,FGL_ACCT_CODE,FGL_ORGN_CODE,FGL_PROG_CODE,FGL_GRNT_YEAR,FGL_PERIOD,FGL_BUDGET) values ('240055','240055','7240','4730','02','10','2','100');
Insert into FGL (FGL_GRNT_CODE,FGL_FUND_CODE,FGL_ACCT_CODE,FGL_ORGN_CODE,FGL_PROG_CODE,FGL_GRNT_YEAR,FGL_PERIOD,FGL_BUDGET) values ('240055','240055','7240','4730','02','11','2','600');
I need to find the greatest grant year for the grant by a period parameter.
once i find the greatest year i need to check the value of period 14 for that grant for the previous year and add it to the budget amount for that grant. however if their is an entry in the greatest year for period 00 then i need to ignore the period 14 of previous year and do this calculation current period +(current period - greatest year 00)
hope that makes sense so in other words with the new data above. if i was querying period two of grant year 11. i would end up with $800
because the greatest year is 11 it contains a period 0 with amount of $400 so my total should be
period 2 amount $ 600
period 0 amount $ 400 - period 2 amount of $600 = 200
600+200 = $800
if i query period 1 of grant 360055 i would just end up with 800 of grnt year 10.
i have tried to modify that query you supplied to me with no luck. I have tried for several day but im embarrased to say i just can get it to do what im trying to do .
can you please help me out.
here is the query supplied by frank kulash who gracefully put this together for me.
WITH got_greatest_year AS
SELECT fgl.* -- or whatever columns are needed
, MAX ( CASE
WHEN fgl_period = :given_period
THEN fgl_grnt_year
END
) OVER () AS greatest_year
FROM fgl
SELECT SUM (fgl_budget) AS total_budget -- or SELECT *
FROM got_greatest_year
WHERE ( fgl_grnt_year = greatest_year
AND fgl_period = :given_period
OR ( fgl_grnt_year = greatest_year - 1
AND fgl_period = 14
;MiguelHi, Miguel,
Are you waying that, when the greatest year that has :given_period also has period='00' (or '0', or whatever you want to use), then you want to double the budget from the given_period (as well as subtract the budget from the '00', and not count the pevious year's '14')? If so, add another condition to the CASE statement which decides what you're SUMming:
WITH got_greatest_year AS
SELECT TO_NUMBER (fgl_grnt_year) AS grnt_year
, fgl_period
, TO_NUMBER (fgl_budget) AS budget
, MAX ( CASE
WHEN fgl_period = :given_period
THEN TO_NUMBER (fgl_grnt_year)
END
) OVER () AS greatest_year
FROM fgl
, got_cnt_00 AS
SELECT grnt_year
, fgl_period
, budget
, greatest_year
, COUNT ( CASE
WHEN grnt_year = greatest_year
AND fgl_period = '00'
THEN 1
END
) OVER () AS cnt_00
FROM got_greatest_year
SELECT SUM ( CASE
WHEN grnt_year = greatest_year -- New
AND fgl_period = :given_period -- New
AND cnt_00 > 0 THEN budget * 2 -- New
WHEN grnt_year = greatest_year
AND fgl_period = :given_period THEN budget
WHEN grnt_year = greatest_year
AND fgl_period = '00' THEN -budget
WHEN grnt_year = greatest_year - 1
AND fgl_period = '14'
AND cnt_00 = 0 THEN budget
END
) AS total_budget
FROM got_cnt_00
;You'll notice this is the same as the previous query I posted, except for 3 lines maked "New". -
Username and password- Need help urgently!
Hi
1) First of all, i have received an email stating that my account under Removed personal information to comply withCommunity GuidelinesandTerms and Conditions of Use.
is being banned as there is multiple obsence post. I need to clarify that i have never used my account to post in BBM forum before. Even if i did, is when i need help urgently for my BBM application. Currently i am holding 4 bbms now. Have never came across this issue. Pls check and advise
2) I urgently need to setup my email accounts. But this time round, when i logged in, they required for my email id and password. And yes my email id is Removed personal information to comply withCommunity GuidelinesandTerms and Conditions of Use. all the while for the past 4 years. I am unable to log in. I tried all kinds of password but unable to log into my mobile settings
Verfiy Blackberry ID
This application requires u to verify ur blackberry id to continue.
blackberry ID username:
Removed personal information to comply withCommunity GuidelinesandTerms and Conditions of Use.
password:
I went to the forget password option, unfortunately as i have never retrieved my password before, i am unable to remember the security question as i did not use it for the past 4 years.
Pls advise.
Urgent and thanksHi,
I have been trying this technique for the past 4 days. It doesnt work no matter how i change the password at the link that u gave me. Even though it's being reset accordingly, i am still unable to log in the password at my mobile. i am 100% sure that i have entered the correct password at my mobile. ( verify blackberry id) . I want to setup new email accounts under "setup" . Upon me clicking " email accounts", it prompt for the one key password. I have never faced this issue before. I am very very sure that my password is correct. Pls advise as i need to add email accounts. Other programs are working fine without any password required being prompt. ie. blackberry world
This is very very urgent to be resolved. Pls help.
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