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ios - How to develop or migrate apps for iPhone 5 screen resolution?

The new iPhone 5 display has a new aspect ratio and a new resolution (640 x 1136 pixels). What is ... the older displays and the new widescreen aspect ratio? Question&Answers:os...

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python - How to make a class JSON serializable

How to make a Python class serializable? A simple class: class FileItem: def __init__(self, fname): self ... ' is not JSON serializable Without the error Question&Answers:os...

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algorithm - Finding all possible combinations of numbers to reach a given sum

How would you go about testing all possible combinations of additions from a given set N of numbers so they add up to a ... 5,22,15,0,...} Desired result: 12345 Question&Answers:os...

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How to make an Android Spinner with initial text "Select One"?

I want to use a Spinner that initially (when the user has not made a selection yet) displays the text "Select One" ... what I want. How can I fix this problem? Question&Answers:os...

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java - How to get the insert ID in JDBC?

I want to INSERT a record in a database (which is Microsoft SQL Server in my case) using JDBC in Java. At the ... ID. How can I achieve this using JDBC API? Question&Answers:os...

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javascript - How to detect page zoom level in all modern browsers?

How can I detect the page zoom level in all modern browsers? While this thread tells how to do it in IE7 and IE8, I ... ());">Show</button> </body> </html> Question&Answers:os...

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layout - Fill remaining vertical space with CSS using display:flex

In a 3-row layout: the top row should be sized according to its contents the bottom row should have a ... make my flexbox layout take 100% vertical space? etc Question&Answers:os...

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parsing - Is there an alternative for flex/bison that is usable on 8-bit embedded systems?

I'm writing a small interpreter for a simple BASIC like language as an exercise on an AVR microcontroller in C using the ... have to do it all by hand, or not? Question&Answers:os...

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list - Prolog union for A U B U C

I've started to learn Prolog recently and I can't solve how to make union of three lists. I was able to make ... union(Y,L,S). can anybody help me please ? Question&Answers:os...

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java - What is the volatile keyword useful for?

At work today, I came across the volatile keyword in Java. Not being very familiar with it, I found this ... you could use this keyword in the correct manner? Question&Answers:os...

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python - What is the purpose and use of **kwargs?

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html - How to make an element width: 100% minus padding?

I have an html input. The input has padding: 5px 10px; I want it to be 100% of the parent div's width(which ... 100% + 20px how can I get around this? Example Question&Answers:os...

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http - How do I send a POST request with PHP?

Actually I want to read the contents that come after the search query, when it is done. The problem is that ... POST method and then read the contents via PHP? Question&Answers:os...

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javascript - How can I get jQuery to perform a synchronous, rather than asynchronous, Ajax request?

I have a JavaScript widget which provides standard extension points. One of them is the beforecreate function. It ... jQuery or any other in-browser API? Question&Answers:os...

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c# - Fastest Way of Inserting in Entity Framework

I'm looking for the fastest way of inserting into Entity Framework. I'm asking this because of the scenario ... and this will lead to an incomplete transaction. Question&Answers:os...

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SQL JOIN and different types of JOINs

What is a SQL JOIN and what are different types? Question&Answers:os...

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performance - How can I read a large text file line by line using Java?

I need to read a large text file of around 5-6 GB line by line using Java. How can I do this quickly? Question&Answers:os...

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Git submodule update

I'm not clear on what the following means (from the Git submodule update documentation): ...will make the submodules ... which branch's commit is used at all? Question&Answers:os...

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python - What is the difference between class and instance attributes?

Is there any meaningful distinction between: class A(object): foo = 5 # some default value vs. class B( ... of the two styles to be significantly different? Question&Answers:os...

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ubuntu - What's the easiest way to install a missing Perl module?

I get this error: Can't locate Foo.pm in @INC Is there an easier way to install it than downloading, untarring, making, etc? Question&Answers:os...

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python - Why does "return list.sort()" return None, not the list?

I've been able to verify that the findUniqueWords does result in a sorted list. However, it does not return the ... (word) answer = newList.sort() return answer Question&Answers:os...

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java - What causes and what are the differences between NoClassDefFoundError and ClassNotFoundException?

What is the difference between NoClassDefFoundError and ClassNotFoundException? What causes them to be thrown? How ... I need more clarity and understanding. Question&Answers:os...

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html - What are the implications of using "!important" in CSS?

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java - How do I fix a NoSuchMethodError?

I'm getting a NoSuchMethodError error when running my Java program. What's wrong and how do I fix it? Question&Answers:os...

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How do you parse and process HTML/XML in PHP?

How can one parse HTML/XML and extract information from it? Question&Answers:os...

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How do you merge two Git repositories?

Consider the following scenario: I have developed a small experimental project A in its own Git repo. It has now ... into B, without losing history on any side? Question&Answers:os...

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Why don't Java's +=, -=, *=, /= compound assignment operators require casting?

Until today, I thought that for example: i += j; Was just a shortcut for: i = i + j; But if we try this: int i ... something like this i = (type of i) (i + j)? Question&Answers:os...

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c++ - What is "Argument-Dependent Lookup" (aka ADL, or "Koenig Lookup")?

What are some good explanations on what argument dependent lookup is? Many people also call it Koenig Lookup as well. ... it a bad thing? How does it work? Question&Answers:os...

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