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How do I use a custom Serializer with Jackson?

...r = new SimpleDateFormat("EEE MMM dd yyyy HH:mm:ss 'GMT'ZZZ (z)"); String format = formatter.format(value); jgen.writeString(format); } } share | improve this answer |...
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How to check if an int is a null

...o be able to be null, you need to use Integer instead of int. Integer id; String name; public Integer getId() { return id; } Besides the statement if(person.equals(null)) can't be true, because if person is null, then a NullPointerException will be thrown. So the correct expression is if (person...
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How to get correct timestamp in C#

...rect syntax to get current date and time is DateTime.Now, so change this: String timeStamp = GetTimestamp(new DateTime()); to this: String timeStamp = GetTimestamp(DateTime.Now); share | improv...
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How do I create a PDO parameterized query with a LIKE statement?

...e you did "select * from table where column like ?;" and set the parameter string so: string frag = $"%{searchFragment}%"; then use frag for the parameter value. Weird – sdjuan Nov 8 '16 at 19:34 ...
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Check if a value exists in ArrayList

...} } return result; } Call it like this: public static void main(String args[]) { EmployeeModel first = new EmployeeModel("Sameer", "Developer", 25); EmployeeModel second = new EmployeeModel("Jon", "Manager", 30); EmployeeModel third = new EmployeeModel("Priyanka", "Tester", 2...
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What is the difference between self-types and trait subclasses?

...nt A. Consider the following examples: scala> trait User { def name: String } defined trait User scala> trait Tweeter { | user: User => | def tweet(msg: String) = println(s"$name: $msg") | } defined trait Tweeter scala> trait Wrong extends Tweeter { | def n...
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An expression tree may not contain a call or invocation that uses optional arguments

...oads? I was getting this when I made an overload. Something like void Blah(string a) and void Blah(object a). When I tried to MOQ out a call to the version with object, it gave me this error. – vbullinger Mar 21 '13 at 14:02 ...
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C#/Linq: Apply a mapping function to each element in an IEnumerable?

...int> integers = new List<int>() { 1, 2, 3, 4, 5 }; IEnumerable<string> strings = integers.Select(i => i.ToString()); Or in LINQ syntax: IEnumerable<int> integers = new List<int>() { 1, 2, 3, 4, 5 }; var strings = from i in integers select i.ToString();...
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WebAPI Delete not working - 405 Method Not Allowed

...the name of the parameter in my Delete method. I had public void Delete(string Questionid) instead of public void Delete(string id) I need to use the id name because that's the name that is declared in my WebApiConfig file. Note the id name in the third and fourth lines: config...
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How to get a list of installed android applications and pick one to run

... Here a good example: class PInfo { private String appname = ""; private String pname = ""; private String versionName = ""; private int versionCode = 0; private Drawable icon; private void prettyPrint() { Log.v(appname + "\t" + pname + "\t"...