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How is an overloaded method chosen when a parameter is the literal null value?
... variable pointing to nothing ?
A null reference can be converted to an expression of any class type. So in the case of String, this is fine:
String x = null;
The String overload here is chosen because the Java compiler picks the most specific overload, as per section 15.12.2.5 of the JLS. In p...
biggest integer that can be stored in a double
...sion is the same as the largest possible value of a double. That is, DBL_MAX or approximately 1.8 × 10308 (if your double is an IEEE 754 64-bit double). It's an integer. It's represented exactly. What more do you want?
Go on, ask me what the largest integer is, such that it and all smaller integ...
jQuery.click() vs onClick
... {
alert('Hello world again!!!');
}, false);
http://jsfiddle.net/aj55x/1/
Why use addEventListener? (From MDN)
addEventListener is the way to register an event listener as specified
in W3C DOM. Its benefits are as follows:
It allows adding more than a single handler for an ...
Spring RestTemplate timeout
...o talk to my service. I've done some research and I've found and used the xml below (in my application xml) which I believe is meant to set the timeout. I'm using Spring 3.0.
...
Prevent BODY from scrolling when a modal is opened
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super() raises “TypeError: must be type, not classobj” for new-style class
... It is preposterous how much of the python standard library still in 2.7.x doesn't inherit from object, thus screwing you by proxy.
– Nick Bastin
Oct 12 '13 at 4:23
2
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GitHub README.md center image
I've been looking at the markdown syntax used in GitHub for a while but except resizing an image to the extent of the README.md page, I can't figure out how to center an image in it.
...
Inputting a default image in case the src attribute of an html is not valid?
...Object Test</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<p>
<object data="http://stackoverflow.com/does-not-exist.png" type="image/png">
<img src="https://cdn.sstatic.net/Img/unified/sprites...
Biggest differences of Thrift vs Protocol Buffers?
...he same features; however, there are some differences:
Thrift supports 'exceptions'
Protocol Buffers have much better documentation/examples
Thrift has a builtin Set type
Protocol Buffers allow "extensions" - you can extend an external proto to add extra fields, while still allowing external code ...
How to “pretty” format JSON output in Ruby on Rails
...se the pretty_generate() function, built into later versions of JSON. For example:
require 'json'
my_object = { :array => [1, 2, 3, { :sample => "hash"} ], :foo => "bar" }
puts JSON.pretty_generate(my_object)
Which gets you:
{
"array": [
1,
2,
3,
{
"sample": "has...