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When should an IllegalArgumentException be thrown?
...m and double price. The price for corresponding item is read from database table. I simply multiply the total number of item purchased with the price value and return the result. Although I am always sure at my end(Application end) that price field value in the table could never be negative .But wha...
How to create and handle composite primary key in JPA
...name = "VERSION")
private Long operatorId;
}
Entity class:
@Entity
@Table (name = "YOUR_TABLE_NAME")
public class Entry implements Serializable {
@EmbeddedId
public EntryKey getKey() {
return this.key;
}
public void setKey(EntryKey id) {
this.id = id;
}
...
Unsigned keyword in C++
... standard in C++. In the current standard: 7.1.5.2 [dcl.simple.type] has a table that identifies each type declaration to the actual type used. That table has a correspondence from 'unsigned' declaration to 'unsigned int' type.
– David Rodríguez - dribeas
Jan ...
Virtual functions and performance - C++
...ual is a per-function attribute. A function only needs to be defined via vtable if it's marked as virtual or if it's overriding a base class that has it as virtual. You'll often see classes that have a group of virtual functions for public interface, and then a lot of inline accessors and so on. (...
What is difference between sjlj vs dwarf vs seh?
...are placed in xdata-section and there is the .pdata
(function descriptor table) instead of the stack. For win32, the chain
of handlers are on stack and need to be saved/restored by real
executed code.
GCC GNU about Exception Handling:
GCC supports two methods for exception handling (EH):...
Why is a ConcurrentModificationException thrown and how to debug it
...
I agree however that if it is unpredictable, there is most likely a threading issue which is causing the conditions for this exception to occur. Which makes it all the more confusing because of the exception name.
– Robin
M...
Fast stable sorting algorithm implementation in javascript
...and a given order (asc/desc). The order of results must be consistent and stable.
16 Answers
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Should I put input elements inside a label element?
...e
</label>
Note that the third technique cannot be used when a table is being used for layout, with the label in one cell and its associated form field in another cell.
Either one is valid. I like to use either the first or second example, as it gives you more style control.
...
How do I design a class in Python?
...s a question of "mutability". Some objects get updated, others don't. Mutable objects must own total responsibility for their mutations.
At this point, you can start to transform nouns into class definitions. Some collective nouns are lists, dictionaries, tuples, sets or namedtuples, and you do...
Can someone copyright a SQL query? [closed]
... write a full description of what the query needs to do, including all the tables, fieldnames etc., and post that here. Someone here is bound to be able to write a new version of the query that is not copyright your developer, and you can edit it each year to your hearts content.
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