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Convert array of strings to List
...tor of List<T>. It accepts any IEnumerable<T> as an argument.
string[] arr = ...
List<string> list = new List<string>(arr);
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Difference between FetchType LAZY and EAGER in Java Persistence API?
...f students for a given university:
public class University {
private String id;
private String name;
private String address;
private List<Student> students;
// setters and getters
}
Now when you load a University from the database, JPA loads its id, name, and address field...
How can I make a multipart/form-data POST request using Java?
...ost = new HttpPost(url);
FileBody bin = new FileBody(new File(fileName));
StringBody comment = new StringBody("Filename: " + fileName);
MultipartEntity reqEntity = new MultipartEntity();
reqEntity.addPart("bin", bin);
reqEntity.addPart("comment", comment);
httppost.setEntity(reqEntity);
HttpRespo...
parseInt(null, 24) === 23… wait, what?
...
It's converting null to the string "null" and trying to convert it. For radixes 0 through 23, there are no numerals it can convert, so it returns NaN. At 24, "n", the 14th letter, is added to the numeral system. At 31, "u", the 21st letter, is added and...
What is the difference between RegExp’s exec() function and String’s match() function?
... // match is now the next match, in array form.
}
// No more matches.
String.match does this for you and discards the captured groups.
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How to create a file in a directory in java?
...
The best way to do it is:
String path = "C:" + File.separator + "hello" + File.separator + "hi.txt";
// Use relative path for Unix systems
File f = new File(path);
f.getParentFile().mkdirs();
f.createNewFile();
...
Attempt to set a non-property-list object as an NSUserDefaults
...hods doesn't help. You can only store things like NSArray, NSDictionary, NSString, NSData, NSNumber, and NSDate in NSUserDefaults.
You need to convert the object to NSData (like you have in some of the code) and store that NSData in NSUserDefaults. You can even store an NSArray of NSData if you nee...
Unit testing that events are raised in C# (in order)
...g test:
[TestMethod]
public void Test_ThatMyEventIsRaised()
{
List<string> receivedEvents = new List<string>();
MyClass myClass = new MyClass();
myClass.PropertyChanged += delegate(object sender, PropertyChangedEventArgs e)
{
receivedEvents.Add(e.PropertyName);
...
Replace whole line containing a string using Sed
...tion that I am using the -i and -e flags as follows: sed -i -e "s/.*search_string.*/Replacement_line/' file_being_searched.txt
– Kent Bull
Dec 27 '14 at 19:24
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Easiest way to read from a URL into a string in .NET
Given a URL in a string:
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