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Booleans, conditional operators and autoboxing
...time:
E1: `true ? returnsNull() : false` - boolean (auto-unboxing 2nd operand to boolean)
E2: `true ? null : false` - Boolean (autoboxing of 3rd operand to Boolean)
See Java Language Specification, section 15.25 Conditional Operator ? :
For E1, the types of the 2nd and 3rd operands are Boolean...
Using PUT method in HTML form
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XHTML 1.x forms only support GET and POST. GET and POST are the only allowed values for
the "method" attribute.
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What's the difference between “groups” and “captures” in .NET regular expressions?
I'm a little fuzzy on what the difference between a "group" and a "capture" are when it comes to .NET's regular expression language. Consider the following C# code:
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How to Use slideDown (or show) function on a table row?
I'm trying to add a row to a table and have that row slide into view, however the slidedown function seems to be adding a display:block style to the table row which messes up the layout.
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How do you test functions and closures for equality?
The book says that "functions and closures are reference types". So, how do you find out if the references are equal? == and === don't work.
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What is lazy loading in Hibernate?
What is lazy loading in Java? I don't understand the process. Can anybody help me to understand the process of lazy loading?
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“405 method not allowed” in IIS7.5 for “PUT” method
... upload *.cab files to my server. On the server side, I registered a HTTP handler for *.cab file with the PUT method as below:
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When should you NOT use a Rules Engine? [closed]
...s when I see people using very large rule sets (e.g., on the order of thousands of rules in a single rule set). This often happens when the rules engine is a singleton sitting in the center of the enterprise in the hope that keeping rules DRY will make them accessible to many apps that require them...
Why does (i
... j is evaluated to true, because auto unboxing happens for int
comparisons and then both i and j hold the default value, 0.
j <= i is evaluated to true because of the above reason.
i != j is evaluated to true, because both i and j are
different objects. And while comparing objects, there isn't an...
Uses for Optional
...eem to swing between wanting to use it everywhere something may be null , and nowhere at all.
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