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How to directly initialize a HashMap (in a literal way)?
...etonMap("key", "value").
For Java Version 9 or higher:
Yes, this is possible now. In Java 9 a couple of factory methods have been added that simplify the creation of maps :
// this works for up to 10 elements:
Map<String, String> test1 = Map.of(
"a", "b",
"c", "d"
);
// this works ...
How to set TextView textStyle such as bold, italic
How to set TextView style (bold or italic) within Java and without using the XML layout?
27 Answers
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What is the colon operator in Ruby?
When I say { :bla => 1, :bloop => 2 } , what exactly does the : do? I read somewhere about how it's similar to a string, but somehow a symbol.
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In Python, how do I index a list with another list?
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Difference between a Structure and a Union
Is there any good example to give the difference between a struct and a union ?
Basically I know that struct uses all the memory of its member and union uses the largest members memory space. Is there any other OS level difference?
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JavaScript equivalent of jQuery's extend method
I have a function that takes a config object as an argument. Within the function, I also have default object. Each of those objects contains properties that essentially work as settings for the rest of the code within the function. In order to prevent having to specify all of the settings wit...
SQL - Update multiple records in one query
I have table - config .
Schema:
config_name | config_value
9 Answers
9
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SQL set values of one column equal to values of another column in the same table
I have a table with two DATETIME columns.
5 Answers
5
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How to chain scope queries with OR instead of AND?
...astname=?', 'John', 'Smith')
Right now, there isn't any other OR support by the new AR3 syntax (that is without using some 3rd party gem).
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Difference between map, applymap and apply methods in Pandas
Can you tell me when to use these vectorization methods with basic examples?
10 Answers
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