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Why are only final variables accessible in anonymous class?
...c final int a = 3;
or as a local variable, like
public static void main(String[] args)
{
final int a = 3;
If you want to access and modify a variable from an anonymous class, you might want to make the variable a class-level variable in the enclosing class.
public class Test
{
public int a;
...
How to sort a list in Scala by two fields?
...: rows.sortBy(r => (r.lastName, r.firstName))( Ordering.Tuple2(Ordering.String.reverse, Ordering.String) ).
– senia
Jun 18 '14 at 10:16
5
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How do MySQL indexes work?
...lision number is high cause you'll only perform the second comparison (the string one) against the repeated hashes.
Unfortunately, using this technique, you still need to hit the table to compare the url field.
Wrap up
Some facts that you may consider every time you want to talk about optimizatio...
If vs. Switch Speed
...ector to look at the code produced, you will see that for huge switches on strings, the compiler will actually generate code that uses a hash table to dispatch these. The hash table uses the strings as keys and delegates to the case codes as values.
This has asymptotic better runtime than lots of c...
Difference between WebStorm and PHPStorm
...upport JS part like Webstorm
That's not correct (your wording). Missing "extra" technology in PhpStorm (for example: node, angularjs) does not mean that basic JavaScript support has missing functionality. Any "extras" can be easily installed (or deactivated, if not required).
UPDATE (2016-12-13...
Alternatives to JavaScript
...ors." is akin to Coffeescript but more comprehensive, providing a bunch of extra features to increase safety and reduce repetitive boilerplate patterns.
LiteScript falls somewhere inbetween Coffeescript and GorillaScript. It offers async/yield syntax for "inline" callbacks, and checking for variable...
Viewing all defined variables [duplicate]
...s was not obvious in your example because all the variables happened to be strings anyway; however, what it's returning is the type of the name of the variable instead of the type of the variable. To fix this: instead of print type(name) use print eval('type(' + name + ')'). I apologize for posting...
How to find a table having a specific column in postgresql
...
Wildcard Support
Find the table schema and table name that contains the string you want to find.
select t.table_schema,
t.table_name
from information_schema.tables t
inner join information_schema.columns c on c.table_name = t.table_name
and c.table_schema =...
Where is my Django installation?
...the -c option is used to tell python that a "program is being passed in as string" (source: command $ python --help on bash)
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Parse a .py file, read the AST, modify it, then write back the modified source code
...de="exec"))
Hello Python!!
You can parse the python code (represented in string) by simply calling the API ast.parse(). This returns the handle to Abstract Syntax Tree (AST) structure. Interestingly you can compile back this structure and execute it as shown above.
Another very useful API is ast....