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Easy idiomatic way to define Ordering for a simple case class
...ering for Tuples, as it is clear, concise, and correct:
case class A(tag: String, load: Int) extends Ordered[A] {
// Required as of Scala 2.11 for reasons unknown - the companion to Ordered
// should already be in implicit scope
import scala.math.Ordered.orderingToOrdered
def compare(that:...
Android Log.v(), Log.d(), Log.i(), Log.w(), Log.e() - When to use each one?
...
You can use LOG such as :
Log.e(String, String) (error)
Log.w(String, String) (warning)
Log.i(String, String) (information)
Log.d(String, String) (debug)
Log.v(String, String) (verbose)
example code:
private static final String TAG = "MyActivity";
...
L...
A generic list of anonymous class
...
Here is the answer.
string result = String.Empty;
var list = new[]
{
new { Number = 10, Name = "Smith" },
new { Number = 10, Name = "John" }
}.ToList();
foreach (var item in list)
{
result += String.Format("Name={0}, Number={1}\n...
How to run Unix shell script from Java code?
...r pb = new ProcessBuilder("myshellScript.sh", "myArg1", "myArg2");
Map<String, String> env = pb.environment();
env.put("VAR1", "myValue");
env.remove("OTHERVAR");
env.put("VAR2", env.get("VAR1") + "suffix");
pb.directory(new File("myDir"));
Process p = pb.start();
...
Kotlin: how to pass a function as parameter to another?
...
Use :: to signify a function reference, and then:
fun foo(m: String, bar: (m: String) -> Unit) {
bar(m)
}
// my function to pass into the other
fun buz(m: String) {
println("another message: $m")
}
// someone passing buz into foo
fun something() {
foo("hi", ::buz)
}
...
T-SQL query to show table definition?
...Source
{
public class ViewSource
{
public static void Main(string[] args)
{
if (args.Length != 6)
{
Console.Error.WriteLine("Syntax: ViewSource.exe <server>" +
" <user> <password> <database> ...
Java - How to create new Entry (key, value)
...alue = value;
return old;
}
}
And then use it:
Map.Entry<String, Object> entry = new MyEntry<String, Object>("Hello", 123);
System.out.println(entry.getKey());
System.out.println(entry.getValue());
...
Convert Set to List without creating new List
...ccepts a Collection as an argument, and your set is a Collection.
List<String> mainList = new ArrayList<String>();
mainList.addAll(set);
EDIT: as respond to the edit of the question.
It is easy to see that if you want to have a Map with Lists as values, in order to have k different va...
postgresql - replace all instances of a string within text field
In postgresql, how do I replace all instances of a string within a database column?
4 Answers
...
What is @ModelAttribute in Spring MVC?
...ct to a Controller method by using the @ModelAttribute annotation:
public String processForm(@ModelAttribute("person") Person person){
person.getStuff();
}
On the other hand the annotation is used to define objects which should be part of a Model.
So if you want to have a Person object refere...