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How to loop through a HashMap in JSP?
...
Just the same way as you would do in normal Java code.
for (Map.Entry<String, String> entry : countries.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
// ...
}
However, scriptlets (raw Java code in JSP files, those <% %> things) are considered...
How to invoke the super constructor in Python?
In all other languages I've worked with the super constructor is invoked implicitly. How does one invoke it in Python? I would expect super(self) but this doesn't work.
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Check image width and height before upload with Javascript
...te the JavaScript Image object.
var image = new Image();
//Set the Base64 string return from FileReader as source.
image.src = e.target.result;
//Validate the File Height and Width.
image.onload = function () {
var height = this.height;
var width = this.width;
if (height > 100 || width &g...
Referencing a string in a string array resource with xml
...isable what items will show up on the menu. There are 17 items. I made a string array in values/arrays.xml with titles for each of these 17 items.
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How to create the most compact mapping n → isprime(n) up to a limit N?
Naturally, for bool isprime(number) there would be a data structure I could query.
I define the best algorithm , to be the algorithm that produces a data structure with lowest memory consumption for the range (1, N], where N is a constant.
Just an example of what I am looking for: I could rep...
Custom attributes - Yea or nay?
...om attributes in their HTML tags, mainly for the purpose of embedding some extra bits of data for use in javascript code.
1...
Does the 'mutable' keyword have any purpose other than allowing the variable to be modified by a con
...l state such as a cache. For example:
class HashTable
{
...
public:
string lookup(string key) const
{
if(key == lastKey)
return lastValue;
string value = lookupInternal(key);
lastKey = key;
lastValue = value;
return value;
}
priv...
How to manually create icns files using iconutil?
...following instructions (link):
Use iconutil to Create an icns File Manually
The iconutil command-line tool converts iconset folders to deployment-ready, high-resolution icns files. (You can find complete documentation for this tool by entering man iconutil in Terminal.) Using this tool al...
Main differences between SOAP and RESTful web services in Java [duplicate]
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advantages of REST web services are:
Lightweight - not a lot of extra XML markup Human Readable Results
Easy to build - no toolkits required. SOAP also has some advantages:
Easy to consume - sometimes Rigid - type checking, adheres to a
contract Development tools For consuming...
About Java cloneable
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Cloning invokes an extra-linguistic way of constructing objects - without constructors.
Cloning requires you to treat somehow with CloneNotSupportedException - or to bother client code for treating it.
Benefits are small - you just don't have ...