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BigDecimal setScale and round
... leftmost nonzero digit of the exact result. docs.oracle.com/javase/7/docs/api/java/math/BigDecimal.html
– Eddy
Sep 6 '16 at 7:06
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What order are the Junit @Before/@After called?
...void setUp() ) and @After ( public void tearDown() ) method to establish API and DB connections. What I've been doing is just overriding those two methods in each testcase and calling super.setUp() and super.tearDown() . However this can cause problems if someone forgets to call the super or pu...
Is there a destructor for Java?
...rces, use an explicit method call. This convention can be seen in existing APIs (e.g. Closeable, Graphics.dispose(), Widget.dispose()) and is usually called via try/finally.
Resource r = new Resource();
try {
//work
} finally {
r.dispose();
}
Attempts to use a disposed object should throw...
How to detect Windows 64-bit platform with .NET?
...and if you are running in a 32-bit process, you still have to call the Win API function IsWow64Process. If this returns true, you are running in a 32-bit process on 64-bit Windows.
Microsoft's Raymond Chen:
How to detect programmatically whether you are running on 64-bit Windows
My solution:
static ...
Polymorphism: Why use “List list = new ArrayList” instead of “ArrayList list = new ArrayList”? [dupl
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Changing the implementation doesn't change anything for the users of your API.
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How to Convert JSON object to Custom C# object?
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A good way to use JSON in C# is with JSON.NET
Quick Starts & API Documentation from JSON.NET - Official site help you work with it.
An example of how to use it:
public class User
{
public User(string json)
{
JObject jObject = JObject.Parse(json);
JToken jUser...
Java 8 stream reverse order
...sorted and distinct actually store an intermediate result. See the package API docs for some information about that.
– Lii
Sep 25 '14 at 9:08
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Hidden Features of C#? [closed]
...and set the value to null, it would be very strange for someone using your API.
– Ian
Oct 7 '09 at 8:16
8
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Best way to convert an ArrayList to a string
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Requires Android API 26+
– Arsen Sench
Aug 28 '17 at 8:24
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Java Class.cast() vs. cast operator
...ame to java I personally like using Class#cast with the collections/stream API if I'm working with abstract types, for example.
Dog findMyDog(String name, Breed breed) {
return lostAnimals.stream()
.filter(Dog.class::isInstance)
.map(Dog.class::cast)
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