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How do I tell if a regular file does not exist in Bash?
...tmp/foo.txt ] && echo "File not found!"
– DavidWinterbottom
Sep 29 '10 at 12:09
38
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Reading a simple text file
I am trying to read a simple text file in my sample Android Application. I am using the below written code for reading the simple text file.
...
What is the proper way to re-attach detached objects in Hibernate?
...ch detached objects to a hibernate session, although an object of the same identity MAY already exist in the session, which will cause errors.
...
How do you beta test an iphone app?
...ll the steps in using itself, while ibetatest was resorting to a very dry video to explain the process.
– DanF
May 7 '11 at 21:39
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H2 in-memory database. Table not found
...se with URL "jdbc:h2:test" . I create a table using CREATE TABLE PERSON (ID INT PRIMARY KEY, FIRSTNAME VARCHAR(64), LASTNAME VARCHAR(64)); . I then select everything from this (empty) table using SELECT * FROM PERSON . So far, so good.
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How to implement onBackPressed() in Fragments?
Is there a way in which we can implement onBackPressed() in Android Fragment similar to the way in which we implement in Android Activity?
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How to specify an area name in an action link?
...ameter is to pass route Values, if you pass an empty parameter it will consider root structure and if you pass appropriate value it use it as area.
Also do not forget to use null or new{} as the 5th parameter because passing null or new {} while creating action link will not overload method for (te...
Android: alternate layout xml for landscape mode
...ave one layout for landscape and one for portrait? I want to assume extra width and conserve vertical space when the user rotates the phone over sideways.
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How do I change selected value of select2 dropdown with JqGrid?
... to trigger
$('select').val('1').trigger('change.select2');
See this jsfiddle for examples of these. Thanks to @minlare for Solution 2.
Explanation:
Say I have a best friend select with people's names. So Bob, Bill and John (in this example I assume the Value is the same as the name). First I i...
What happens if you call erase() on a map element while iterating from begin to end?
...;
while(pm_it != port_map.end())
{
if (pm_it->second == delete_this_id)
{
pm_it = port_map.erase(pm_it);
}
else
{
++pm_it;
}
}
C++03
Erasing elements in a map does not invalidate any iterators.
(apart from iterators on the element that was deleted)
Actu...