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Maximum Java heap size of a 32-bit JVM on a 64-bit OS
The question is not about the maximum heap size on a 32-bit OS, given that 32-bit OSes have a maximum addressable memory size of 4GB, and that the JVM's max heap size depends on how much contiguous free memory can be reserved.
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Which cryptographic hash function should I choose?
The .NET framework ships with 6 different hashing algorithms:
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How to overload __init__ method based on argument type?
Let's say I have a class that has a member called data which is a list.
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Can someone explain the dollar sign in Javascript?
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How do you set a default value for a MySQL Datetime column?
How do you set a default value for a MySQL Datetime column?
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What is the instanceof operator in JavaScript?
The instanceof keyword in JavaScript can be quite confusing when it is first encountered, as people tend to think that JavaScript is not an object-oriented programming language.
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Are there disadvantages to using a generic varchar(255) for all text-based fields?
I have a contacts table which contains fields such as postcode , first name , last name , town , country , phone number etc, all of which are defined as VARCHAR(255) even though none of these fields will ever come close to having 255 characters. (If you're wondering, it's this way becaus...
How to validate GUID is a GUID
How to determine if a string contains a GUID vs just a string of numbers.
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Storing images in SQL Server?
I have made a small demo site and on it I am storing images within a image column on the sql server. A few questions I have are...
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When you exit a C application, is the malloc-ed memory automatically freed?
Let's say I have the following C code:
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