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When would you use the Builder Pattern? [closed]

... .NET StringBuilder class is a great example of builder pattern. It is mostly used to create a string in a series of steps. The final result you get on doing ToString() is always a string but the creation of that string varies acco...
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No visible cause for “Unexpected token ILLEGAL”

...rs. It seems the tool uses that character to control word-wrapping on long strings. UPDATE 2013-01-07 After the latest jsfiddle update, it's now showing the character as a red dot like codepen does. Apparently, it's also not inserting U+200B characters on its own anymore, so this problem should be ...
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Find a pair of elements from an array whose sum equals a given number

... java.util.HashMap; public class ArrayPairSum { public static void main(String[] args) { int []a = {2,45,7,3,5,1,8,9}; printSumPairs(a,10); } public static void printSumPairs(int []input, int k){ Map<Integer, Integer> pairs = new HashMap<Integer, Integer&g...
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Best way to replace multiple characters in a string?

...ll the methods in the current answers along with one extra. With an input string of abc&def#ghi and replacing & -> \& and # -> \#, the fastest way was to chain together the replacements like this: text.replace('&', '\&').replace('#', '\#'). Timings for each function: a)...
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Can't Find Theme.AppCompat.Light for New Android ActionBar Support

... You need to do next: File->Import (android-sdk\extras\android\support\v7). Choose "AppCompat" Project-> properties->Android. In the section library "Add" and choose "AppCompat" That is all! Note: if you are using "android:showAsAction" in menu item, you ...
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Parse string to DateTime in C#

I have date and time in a string formatted like that one: 8 Answers 8 ...
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Can I stop 100% Width Text Boxes from extending beyond their containers?

... What you could do is to remove the default "extras" on the input: input.wide {display:block; width:100%;padding:0;border-width:0} This will keep the input inside its container. Now if you do want the borders, wrap the input in a div, with the borders set on the div ...
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HTML5 form required attribute. Set custom validation message?

...ly answered. If setCustomValidity is set to anything other than the empty string it will cause the field to be considered invalid; therefore you must clear it before testing validity, you can't just set it and forget. Further edit As pointed out in @thomasvdb's comment below, you need to clear the ...
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BAT file: Open new cmd window and execute a command in there

...e-batch-commands-here" /c Carries out the command specified by string and then terminates /k Carries out the command specified by string but remains Consult the cmd.exe documentation using cmd /? for more details. The proper formating of the command string gets a little m...
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jQuery scroll to element

... individual element 100 pixels down Options: scrollTarget: A element, string, or number which indicates desired scroll position. offsetTop: A number that defines additional spacing above scroll target. duration: A string or number determining how long the animation will run. easing: A string...