| Methods Summary |
|---|
| public void | addStock()
input = new TextBox("Enter a Stock Name:", "", 5, TextField.ANY);
input.setTicker(ticker);
input.addCommand(saveCommand);
input.addCommand(backCommand);
input.setCommandListener(this);
input.setString("");
display.setCurrent(input);
currentMenu = "Add";
|
| public void | commandAction(Command c, Displayable d)
String label = c.getLabel();
if (label.equals("Exit")) {
destroyApp(true);
} else if (label.equals("Save")) {
if(currentMenu.equals("Add")) {
// add it to database
try {
String userInput = input.getString();
String pr = getQuote(userInput);
db.addNewStock(pr);
ticker.setString(tickerString());
} catch(IOException e) {
} catch(NumberFormatException se) {
}
mainMenu();
}
} else if (label.equals("Back")) {
if(currentMenu.equals("List")) {
// go back to menu
mainMenu();
} else if(currentMenu.equals("Add")) {
// go back to menu
mainMenu();
}
} else {
List down = (List)display.getCurrent();
switch(down.getSelectedIndex()) {
case 0: listStocks();break;
case 1: addStock();break;
}
}
|
| public void | destroyApp(boolean unconditional)
try {
db.close();
} catch(Exception e) {}
notifyDestroyed();
|
| public java.lang.String | getQuote(java.lang.String input)
String url = quoteServer + input + quoteFormat;
StreamConnection c = (StreamConnection)Connector.open(
url, Connector.READ_WRITE);
InputStream is = c.openInputStream();
StringBuffer sb = new StringBuffer();
int ch;
while((ch = is.read()) != -1) {
sb.append((char)ch);
}
return(sb.toString());
|
| public void | listStocks()
choose = new List("Choose Stocks", Choice.MULTIPLE);
choose.setTicker(new Ticker(tickerString()));
choose.addCommand(backCommand);
choose.setCommandListener(this);
try {
RecordEnumeration re = db.enumerate();
while(re.hasNextElement()) {
String theStock = new String(re.nextRecord());
choose.append(Stock.getName(theStock)+" @ " +
Stock.getPrice(theStock),null);
}
} catch(Exception ex) {}
display.setCurrent(choose);
currentMenu = "List";
|
| void | mainMenu()
display.setCurrent(menu);
currentMenu = "Main";
|
| public void | pauseApp()
display = null;
choose = null;
menu = null;
ticker = null;
try {
db.close();
db = null;
} catch(Exception e) {}
|
| public void | startApp()
display = Display.getDisplay(this);
// open a db stock file
try {
db = new StockDB("mystocks");
} catch(Exception e) {}
menu = new List("Stocks Database", Choice.IMPLICIT);
menu.append("List Stocks", null);
menu.append("Add A New Stock", null);
menu.addCommand(exitCommand);
menu.setCommandListener(this);
menu.setTicker(ticker);
mainMenu();
|
| public java.lang.String | tickerString()
StringBuffer ticks = null;
try {
RecordEnumeration enum = db.enumerate();
ticks = new StringBuffer();
while(enum.hasNextElement()) {
String stock1 = new String(enum.nextRecord());
ticks.append(Stock.getName(stock1));
ticks.append(" @ ");
ticks.append(Stock.getPrice(stock1));
ticks.append(" ");
}
} catch(Exception ex) {}
return (ticks.toString());
|
