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How do I hide a menu item in the actionbar?
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Get a MenuItem pointing to such item, call setVisible on it to adjust its visibility and then call invalidateOptionsMenu() on your activity so the ActionBar menu is adjusted accordingly.
Update: A MenuItem is not a regular view that's part of your layout. Its som...
Explain how finding cycle start node in cycle linked list work?
...t node in the cycle.
When the tortoise and hare meet, we have found the smallest i (the number of steps taken by the tortoise) such that Xi = X2i. Let mu represent the number of steps to get from X0 to the start of the cycle, and let lambda represent the length of the cycle. Then i = mu + alambda,...
How to declare a variable in a PostgreSQL query
...WITH () query which can work as a variable, or even tuple of variables. It allows you to return a table of temporary values.
WITH master_user AS (
SELECT
login,
registration_date
FROM users
WHERE ...
)
SELECT *
FROM users
WHERE master_login = (SELECT login
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Maven2: Best practice for Enterprise Project (EAR file)
...ur two dependencies for your EJB project and your WAR project.
So you actually have three maven projects here. One EJB. One WAR. One EAR that pulls the two parts together and creates the ear.
Deployment descriptors can be generated by maven, or placed inside the resources directory in the EAR pr...
Create timestamp variable in bash script
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10 Answers
10
Active
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Maximum Java heap size of a 32-bit JVM on a 64-bit OS
...expect to be hitting this limit you should strongly consider starting a parallel track validating a 64-bit JVM for your production environment so you have that ready for when the 32-bit environment breaks down. Otherwise you will have to do that work under pressure, which is never nice.
Edit 201...
Disable a Button
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answered Aug 27 '14 at 10:26
KerrMKerrM
4,59733 gold badges3030 silver badges5656 bronze badges
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How to read environment variables in Scala
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I would also prefer Properties. It allows to retrieve Optionals, and has names for commonly used properties.
– ppopoff
Dec 17 '15 at 14:46
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Java: int array initializes with nonzero elements
...here it is not. Such a behavior occurs first in JDK 7u4 and also occurs in all later updates (I use 64-bit implementation). The following code throws exception:
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Pandas every nth row
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answered Sep 10 '17 at 13:22
metastableBmetastableB
53555 silver badges88 bronze badges
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