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How to convert a JSON string to a Map with Jackson JSON
I'm trying to do something like this but it doesn't work:
10 Answers
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Dealing with commas in a CSV file
I am looking for suggestions on how to handle a csv file that is being created, then uploaded by our customers, and that may have a comma in a value, like a company name.
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What does “=>” mean in PHP?
...or associative arrays. In the context of that foreach loop, it assigns the key of the array to $user and the value to $pass.
Example:
$user_list = array(
'dave' => 'apassword',
'steve' => 'secr3t'
);
foreach ($user_list as $user => $pass) {
echo "{$user}'s pass is: {$pass}\n"...
No empty constructor when create a service
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You need to add an empty constructor to your class i.e. one that takes no arguments:
public ReminderService() {
super("ReminderService");
}
Explanation from the documentation:
The name is used to name the worker thread.
NOTE: this is only applicable to intent service.
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Java 8 Streams - collect vs reduce
...ifferent parts of the stream are then added together.
The document you linked gives the reason for having two different approaches:
If we wanted to take a stream of strings and concatenate them into a
single long string, we could achieve this with ordinary reduction:
String concatenated = s...
How can I get the current user directory?
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May be this will be a good solution: taking in account whether this is Vista/Win7 or XP and without using environment variables:
string path = Directory.GetParent(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)).FullName;
if ( Environment.OSV...
JUnit 4 compare Sets
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You can assert that the two Sets are equal to one another, which invokes the Set equals() method.
public class SimpleTest {
private Set<String> setA;
private Set<String> setB;
@Before
public void setUp() {
setA = new HashSet<String>();
setA....
Adding a simple UIAlertView
What is some starter code I could use to make a simple UIAlertView with one "OK" button on it?
10 Answers
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Replace comma with newline in sed on MacOS?
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Is there a way to dump a stack trace without throwing an exception in java?
I am thinking of creating a debug tool for my Java application.
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