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How does a PreparedStatement avoid or prevent SQL injection?
I know that PreparedStatements avoid/prevent SQL Injection. How does it do that? Will the final form query that is constructed using PreparedStatements will be a string or otherwise?
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How should I have explained the difference between an Interface and an Abstract class?
...h methods
}
But what if encryptPassword() is not database dependent, and it's the same for each class? Then the above would not be a good approach.
Instead, consider this approach:
public abstract class LoginAuth{
public String encryptPassword(String pass){
// Implement the same d...
How does the compilation/linking process work?
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Preprocessing: the preprocessor takes a C++ source code file and deals with the #includes, #defines and other preprocessor directives. The output of this step is a "pure" C++ file without pre-processor directives.
Compilation: the compiler takes the pre-processor's output and produces an object f...
Best way to make Java's modulus behave like it should with negative numbers?
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It behaves as it should a % b = a - a / b * b; i.e. it's the remainder.
You can do (a % b + b) % b
This expression works as the result of (a % b) is necessarily lower than b, no matter if a is positive or negative. Adding...
What is difference between Errors and Exceptions? [duplicate]
...cation should
not try to catch."
while
An Exception "indicates conditions
that a reasonable application might
want to catch."
Error along with RuntimeException & their subclasses are unchecked exceptions. All other Exception classes are checked exceptions.
Checked exceptions are g...
Difference between “on-heap” and “off-heap”
...t subject to GC). As the off-heap store continues to be managed in memory, it is slightly slower than the on-heap store, but still faster than the disk store.
The internal details involved in management and usage of the off-heap store aren't very evident in the link posted in the question, so it wo...
When should you branch?
When working with a SCM system, when should you branch?
12 Answers
12
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Spring @Transaction method call by the method within the same class, does not work?
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It's a limitation of Spring AOP (dynamic objects and cglib).
If you configure Spring to use AspectJ to handle the transactions, your code will work.
The simple and probably best alternative is to refactor your code. For examp...
Tools to search for strings inside files without indexing [closed]
...ings in an incredibly old legacy application, and the programmers who made it thought it would be a great idea to plaster the entire app with connection strings all over the place.
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Testing modules in rspec
...d in few models and for now I simply have duplicate tests for each model (with few differences). Is there a way to DRY it up?
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