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Favorite (Clever) Defensive Programming Best Practices [closed]
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When printing out error messages with a string (particularly one which depends on user input), I always use single quotes ''. For example:
FILE *fp = fopen(filename, "r");
if(fp == NULL) {
fprintf(stderr, "ERROR: Could not open file %s\n", filename);
retu...
What do linkers do?
...0,%rsi
11: 00 00 00
which should move the address of the hello world string into the rsi register, which is passed to the write system call.
But wait! How can the compiler possibly know where "Hello world!" will end up in memory when the program is loaded?
Well, it can't, specially after we ...
Return anonymous type results?
...:
public class DogWithBreed
{
public Dog Dog { get; set; }
public string BreedName { get; set; }
}
public IQueryable<DogWithBreed> GetDogsWithBreedNames()
{
var db = new DogDataContext(ConnectString);
var result = from d in db.Dogs
join b in db.Breeds on d.B...
Why do we always prefer using parameters in SQL statements?
...ase, it looks like you're using .NET. Using parameters is as easy as:
C#
string sql = "SELECT empSalary from employee where salary = @salary";
using (SqlConnection connection = new SqlConnection(/* connection info */))
using (SqlCommand command = new SqlCommand(sql, connection))
{
var salaryP...
How are parameters sent in an HTTP POST request?
In an HTTP GET request, parameters are sent as a query string :
8 Answers
8
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Invoking a static method using reflection
...
// String.class here is the parameter type, that might not be the case with you
Method method = clazz.getMethod("methodName", String.class);
Object o = method.invoke(null, "whatever");
In case the method is private use getDecl...
How to invoke a Linux shell command from Java
...te a command in your shell
try
Process p = Runtime.getRuntime().exec(new String[]{"csh","-c","cat /home/narek/pk.txt"});
instead.
EDIT::
I don't have csh on my system so I used bash instead. The following worked for me
Process p = Runtime.getRuntime().exec(new String[]{"bash","-c","ls /home/XX...
What is Full Text Search vs LIKE
... word
ranking—measuring the
similarity of a matching record to
the query string
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Send POST data using XMLHttpRequest
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Is it possible to send an object in params instead of a string like in jQuery?
– Vadorequest
Sep 7 '14 at 11:27
4
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Use StringFormat to add a string to a WPF XAML binding
...e is effectively what you need:
<TextBlock Text="{Binding CelsiusTemp, StringFormat={}{0}°C}" />
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