大约有 23,000 项符合查询结果（耗时：0.0321秒） [XML]
Getting an element from a Set
...you have no other option but to use the iterator:
public static void main(String[] args) {
Set<Foo> set = new HashSet<Foo>();
set.add(new Foo("Hello"));
for (Iterator<Foo> it = set.iterator(); it.hasNext(); ) {
Foo f = it.next();
if (f.equals(new Foo(...
ASP.NET MVC 4 Custom Authorize Attribute with Permission Codes (without roles)
...rizeUserAttribute : AuthorizeAttribute
{
// Custom property
public string AccessLevel { get; set; }
protected override bool AuthorizeCore(HttpContextBase httpContext)
{
var isAuthorized = base.AuthorizeCore(httpContext);
if (!isAuthorized)
{
...
What are the true benefits of ExpandoObject?
...le, imagine that you have a dictionary within a dictionary:
Dictionary<String, object> dict = new Dictionary<string, object>();
Dictionary<String, object> address = new Dictionary<string,object>();
dict["Address"] = address;
address["State"] = "WA";
Console.WriteLine(((Dicti...
Freely convert between List and IEnumerable
...
List<string> myList = new List<string>();
IEnumerable<string> myEnumerable = myList;
List<string> listAgain = myEnumerable.ToList();
...
Google Guava isNullOrEmpty for collections
I see that Guava has isNullOrEmpty utility method for Strings
7 Answers
7
...
How to add parameters to a HTTP GET request in Android?
...
I use a List of NameValuePair and URLEncodedUtils to create the url string I want.
protected String addLocationToUrl(String url){
if(!url.endsWith("?"))
url += "?";
List<NameValuePair> params = new LinkedList<NameValuePair>();
if (lat != 0.0 && lon !...
How to replace list item in best way
...he index in the List and use this index to replace the list item.
List<string> listOfStrings = new List<string> {"abc", "123", "ghi"};
listOfStrings[listOfStrings.FindIndex(ind=>ind.Equals("123"))] = "def";
...
What is Double Brace initialization in Java?
... has something like map literals, similar to the existing array literals:
String[] array = { "John", "Doe" };
Map map = new HashMap() {{ put("John", "Doe"); }};
Some people may find this syntactically stimulating.
share
...
Cleaner way to do a null check in C#? [duplicate]
... return visitor.IsNull;
}
}
class Program
{
static void Main(string[] args)
{
Person nullPerson = null;
var isNull_0 = nullPerson.IsNull(p => p.contact.address.city);
var isNull_1 = new Person().IsNull(p => p.contact.address.city);
var isNull_2...
C# switch statement limitations - why?
...t believe the compiler generates constant-time branching when switching on strings either.
– Drew Noakes
Dec 3 '10 at 21:29
...