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What does 'synchronized' mean?
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The synchronized keyword is all about different threads reading and writing to the same variables, objects and resources. This is not a trivial topic in Java, but here is a quote from Sun:
synchronized methods enable a simple
strategy for prevent...
Understand the “Decorator Pattern” with a real world example
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Decorator pattern achieves a single objective of dynamically adding
responsibilities to any object.
Consider a case of a pizza shop. In the pizza shop they will sell few pizza varieties and they will also provide toppings in the menu. Now imagine a situation wherein if the piz...
Search of table names
...me like '%xxx%'
and is_ms_shipped = 0; -- << comment out if you really want to see them
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What are file descriptors, explained in simple terms?
...you open a network socket, it is also represented by an integer and it is called Socket Descriptor.
I hope you understand.
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Getting all types that implement an interface
Using reflection, how can I get all types that implement an interface with C# 3.0/.NET 3.5 with the least code, and minimizing iterations?
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What makes Scala's operator overloading “good”, but C++'s “bad”?
...t to be repeated in newer languages. Certainly, it was one feature specifically dropped when designing Java.
14 Answers
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How to set my default shell on Mac?
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Here's another way to do it:
Assuming you installed it with MacPorts, which can be done by doing:
sudo port install fish
Your shell will be located in /opt/local/bin/fish.
You need to tell OSX that this is a valid shell. To do that, add this path to the end of the /...
What do the result codes in SVN mean?
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U: Working file was updated
G: Changes on the repo were automatically merged into the working copy
M: Working copy is modified
C: This file conflicts with the version in the repo
?: This file is not under version control
!: This file is under version control but is mis...
CROSS JOIN vs INNER JOIN in SQL
...---------------------------------x
2. CROSS JOIN
Cross join selects the all the rows from the first table and all the rows from second table and shows as Cartesian product ie, with all possibilities
Consider we need to find all the teachers in the school and students irrespective of class teacher...
What is a typedef enum in Objective-C?
I don't think I fundamentally understand what an enum is, and when to use it.
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