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Java: function for arrays like PHP's join()?
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In Java 8 you can use
1) Stream API :
String[] a = new String[] {"a", "b", "c"};
String result = Arrays.stream(a).collect(Collectors.joining(", "));
2) new String.join method: https://stackoverflow.com/a/21756398/466677
3) java.util.StringJoiner class:...
How to compare dates in Java? [duplicate]
... Java SE 9, Java SE 10, Java SE 11, and later - Part of the standard Java API with a bundled implementation.
Java 9 brought some minor features and fixes.
Java SE 6 and Java SE 7
Most of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
Android
Later versions...
What's the best Django search app? [closed]
...arch - a new model based search abstraction layer that currently supports Xapian, Solr and Whoosh. Looks like it's well supported and documented.
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How do CDI and EJB compare? interact?
...ht than the CDI event bus and EJB3 only defines a listener, not a producer API.
JSF Managed Beans have existed in Java EE ever since JSF was included. They too feature dependency injection and scoping. JSF Managed Beans introduced the concept of declarative scoping. Originally the scopes were rathe...
Meaning of Choreographer messages in Logcat [duplicate]
I installed the latest versions of SDK (API 16) and got the latest ADT. I'm now seeing these messages in the logcat, that I'm quite sure, I haven't seen before. Does anyone have an idea about this?
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What is the meaning of symbol $ in jQuery?
... want to wrap with
the jQuery object.
Here is the documentation: https://api.jquery.com/jQuery/
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How to test that no exception is thrown?
...e
package test.mycompany.myapp.mymodule;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
class MyClassTest {
@Test
void when_string_has_been_constructed_then_myFunction_does_not_throw() {
String myString = "this string has been constructed";
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What could cause java.lang.reflect.InvocationTargetException?
...ws an exception.
So if the method, that has been invoked with reflection API, throws an exception (runtime exception for example), the reflection API will wrap the exception into an InvocationTargetException.
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Converting Integer to String with comma for thousands
...his implements the locale-specific grouping. docs.oracle.com/javase/7/docs/api/java/util/Formatter.html#dnum
– adam.r
Jan 28 '14 at 21:08
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Java string to date conversion
...s and available format patterns; the tutorial is available here). This new API is inspired by JodaTime.
String string = "January 2, 2010";
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("MMMM d, yyyy", Locale.ENGLISH);
LocalDate date = LocalDate.parse(string, formatter);
System.out.printl...