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Get ID of last inserted document in a mongoDB w/ Java driver
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In MongoTemplate.class has a method
protected <T> void doInsert(String collectionName, T objectToSave, MongoWriter<T> writer) {
assertUpdateableIdIfNotSet(objectToSave);
initializeVersionProperty(objectToSave);
maybeEmitEvent(new BeforeConvertEvent<T>(objectToSa...
How do you check what version of SQL Server for a database using TSQL?
...ET @ver = CAST(serverproperty('ProductVersion') AS nvarchar)
SET @ver = SUBSTRING(@ver, 1, CHARINDEX('.', @ver) - 1)
IF ( @ver = '7' )
SELECT 'SQL Server 7'
ELSE IF ( @ver = '8' )
SELECT 'SQL Server 2000'
ELSE IF ( @ver = '9' )
SELECT 'SQL Server 2005'
ELSE IF ( @ver = '10' )
SELECT 'SQ...
How to set focus on input field?
...ing '@' we compare the trigger value to "true" since @ always results in a string.
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Internet Explorer 11 detection
I know IE 11 has different user agent string than all other IE
11 Answers
11
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how to implement a long click listener on a listview
...ng arg3) {
Toast.makeText(list.this,myList.getItemAtPosition(index).toString(), Toast.LENGTH_LONG).show();
return false;
}
});
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Sort an array in Java
...] = rand.nextInt(100) + 1;
Arrays.sort(array);
System.out.println(Arrays.toString(array));
// in reverse order
for (int i = array.length - 1; i >= 0; i--)
System.out.print(array[i] + " ");
System.out.println();
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In Python, how do I convert all of the items in a list to floats?
... have a script which reads a text file, pulls decimal numbers out of it as strings and places them into a list.
12 Answers
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Why we should not use protected static in java
...ry this example code:
public class Program {
public static void main (String[] args) throws java.lang.Exception {
System.out.println(new Test2().getTest());
Test.test = "changed";
System.out.println(new Test2().getTest());
}
}
abstract class Test {
protected sta...
How do you find the sum of all the numbers in an array in Java?
...3
Finally, it can take an array of type T. So you can per example have a String which contains numbers as an input and if you want to sum them just do :
int sum = Arrays.stream("1 2 3 4".split("\\s+")).mapToInt(Integer::parseInt).sum();
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Is the creation of Java class files deterministic?
...bled over this interesting blog post about the implementation of switch on String in Java 7. In this blog post, there are some relevant parts, that I'll quote here (emphasis mine):
In order to make the compiler's output predictable and repeatable, the maps and sets used in these data structures ...