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Calculate date from week number
...or Week 53 of 2009 as well.
public static DateTime FirstDateOfWeekISO8601(int year, int weekOfYear)
{
DateTime jan1 = new DateTime(year, 1, 1);
int daysOffset = DayOfWeek.Thursday - jan1.DayOfWeek;
// Use first Thursday in January to get first week of the year as
// it will never b...
How can I change the EditText text without triggering the Text Watcher?
...
Your hint is enough for me. Actually I was registering the listener in onResume but not de-registering in onPause(), so it was calling multiple times.
– Smeet
Jun 7 '17 at 12:04
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What does 'const static' mean in C and C++?
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A lot of people gave the basic answer but nobody pointed out that in C++ const defaults to static at namespace level (and some gave wrong information). See the C++98 standard section 3.5.3.
First some background:
Translation unit: A source file after the pre-processor (recu...
Get output parameter value in ADO.NET
...nd type)
SqlParameter outputIdParam = new SqlParameter("@ID", SqlDbType.Int)
{
Direction = ParameterDirection.Output
};
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(outputIdParam);
conn.Open();
cmd.ExecuteNonQuery();
// Some various ways to gra...
Passing an array by reference
...ant a reference to an array, rather than the (invalid) array of references int & array[100];.
EDIT: Some clarification.
void foo(int * x);
void foo(int x[100]);
void foo(int x[]);
These three are different ways of declaring the same function. They're all treated as taking an int * parameter...
How do I call one constructor from another in Java?
...
Yes, it is possible:
public class Foo {
private int x;
public Foo() {
this(1);
}
public Foo(int x) {
this.x = x;
}
}
To chain to a particular superclass constructor instead of one in the same class, use super instead of this. Note that y...
Unsigned keyword in C++
...d long. When one of these type modifiers is used by itself, a data type of int is assumed
This means that you can assume the author is using ints.
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Overloading and overriding
...t signatures.
//Overloading
public class test
{
public void getStuff(int id)
{}
public void getStuff(string name)
{}
}
Overriding
Overriding is a principle that allows you to change the functionality of a method in a child class.
//Overriding
public class test
{
public...
Average of 3 long integers
I have 3 very large signed integers.
12 Answers
12
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Fixed size queue which automatically dequeues old values upon new enques
...ue<T>();
private object lockObject = new object();
public int Limit { get; set; }
public void Enqueue(T obj)
{
q.Enqueue(obj);
lock (lockObject)
{
T overflow;
while (q.Count > Limit && q.TryDequeue(out overflow)) ;
...