converter

This function receives as a parameter an integer and should return a list representing the same value expressed in binary as a list of bits, where the first element in the list is the most significant (leftmost) bit. My function currently outputs '1011' for the number 11, I need [1,0,1,1] instead. For example, >>> convert_to_binary(11) [1,0,1,1] def trans(x): if x == 0: return [0] bit = [] while x: bit.append(x % 2) x >>= 1 return bit[::-1] Just for fun - the solution as a recursive one-liner: def tobin(x): return tobin(x/2) + [x%2] if x > 1 else [x] may I propose this: def tobin(x,s): return

The below selectItems is fed from a Session Scoped Map. When the user clicks the Submit button, it is supposed to set a date field in the Request Scoped backing bean and display it on the page. <h:selectOneMenu value="#{dropDown.selectedDate}"> <f:selectItems value="#{mapValues.dateMap.entrySet()}" var="entry" itemLabel="#{entry.value}" itemValue="#{entry.key}" /> </h:selectOneMenu> <h:commandButton value="Submit" /> You selected Date #{dropDown.selectedDate} However, the following conversion error is received: Conversion Error setting value 'Wed Dec 26 15:09:32 EST 2012' for 'null Converter'.

In my app I would like to toggle the visibility of an item in a StackPanel. My Stackpanel contains an Image and a TextBlock. How would I properly use a BoolToVisibilityConverter to toggle the visibility of the TextBlock, and save this setting for the users benefit? Currently what I have is as follows, although I am getting a few errors. Important note, I need to use an ApplicationBar menu item as the click event that drives the toggling of the TextBox visibility. EDIT Error no longer occurring although the visibility of the TextBlock is not changing. XAML xmlns:common="clr-namespace:TestApp

I have a homework assignment where I need to do three-way conversion between decimal, binary and hexadecimal. The function I need help with is converting a decimal into a hexadecimal. I have nearly no understanding of hexadecimal, nonetheless how to convert a decimal into hex. I need a function that takes in an int dec and returns a String hex . Unfortunately I don't have any draft of this function, I'm completely lost. All I have is this. public static String decToHex(int dec) { String hex = ""; return hex; } Also I can't use those premade functions like Integer.toHexString() or anything, I

I am using JSF 2 and RichFaces 3. Here in the picture shown below, numbers are being displayed as what they are in the database. But I want to display them as 6749395.20 if fraction part is there and 5095138.00 if no fraction part is there. As of now I have tried something like this. <rich:column> <f:facet name="header"> <h:outputText value="Total Amount"/> </f:facet> <h:outputText value="#{rr[2]}"> <f:convertNumber type="number" groupingUsed="true" minFractionDigits="2" pattern="#0.00"/> </h:outputText> </rich:column> Actually I am showing all of them together, but I have tried with all of