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How can we print line numbers to the log in java
...g {
public final static boolean DEBUG = true;
public static void log(String message) {
if (DEBUG) {
String fullClassName = Thread.currentThread().getStackTrace()[2].getClassName();
String className = fullClassName.substring(fullClassName.lastIndexOf(".") + 1);
String methodName =...
Easiest way to compare arrays in C#
...in array or tuples via using StructuralComparisons type:
object[] a1 = { "string", 123, true };
object[] a2 = { "string", 123, true };
Console.WriteLine (a1 == a2); // False (because arrays is reference types)
Console.WriteLine (a1.Equals (a2)); // False (because arrays is reference types)...
How do I instantiate a Queue object in java?
...
Queue<String> qe=new LinkedList<String>();
qe.add("b");
qe.add("a");
qe.add("c");
Since Queue is an interface, you can't create an instance of it as you illustrated
...
Is there a way to get the XPath in Google Chrome?
...
He was asking "how to get an xpath string for an element?", rather than "how do i select by xpath?" wasn't he?
– Max Williams
Jan 3 '12 at 11:05
...
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);
}
}
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java.net.UnknownHostException: Invalid hostname for server: local
...ther. Everything was right.
The Solution
Not calling trim() for the host string which contained whitespace. In writing a proxy server the host was obtained from HTTP headers with the use of split(":") by semicolons for the HOST header. This left whitespace, and causes the UnknownHostException as a...
Convert an ISO date to the date format yyyy-mm-dd in JavaScript
...
Just crop the string:
var date = new Date("2013-03-10T02:00:00Z");
date.toISOString().substring(0, 10);
Or if you need only date out of string.
var strDate = "2013-03-10T02:00:00Z";
strDate.substring(0, 10);
...
How to inherit constructors?
...t annoying one for me is custom exceptions - Sub New(), Sub New(Message As String), Sub New(Message As String, InnerEx as Exception), Sub New(Info As Serialization.SerializationInfo, Context As Serialization.StreamingContext)... Yawn `
– Basic
May 20 '13 at 19:...
Java Equivalent of C# async/await?
...ecute additional code when the asynchronous operation completes (client.GetStringAsync(...)).
So, as the most close approximation I would use a CompletableFuture<T> (the Java 8 equivalent to .net Task<TResult>) based solution to process the Http request asynchronously.
UPDATED on 25-...
What is JSON and why would I use it?
..."646 555-4567"
]
}
JSON in JavaScript
JSON (in Javascript) is a string!
People often assume all Javascript objects are JSON and that JSON is a Javascript object. This is incorrect.
In Javascript var x = {x:y} is not JSON, this is a Javascript object. The two are not the same thing. The ...