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How to fix error “Updating Maven Project”. Unsupported IClasspathEntry kind=4?
...your Project and select “Configure -> Convert into Maven Project”
Now you got “Unsupported IClasspathEntry kind=4 Eclipse Scala” disappear.
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Dilemma: when to use Fragments vs Activities:
I know that Activities are designed to represent a single screen of my application, while Fragments are designed to be reusable UI layouts with logic embedded inside of them.
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SQL - Query to get server's IP address
...a while, so policy&rules here might have changed (will go read them up now...)
– Martin S. Stoller
Feb 25 '15 at 19:53
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Differences between cookies and sessions?
...in web developement and am learning about JSP & Servlets . I have some knowledge of HttpSession - I have used it in some of my sample projects.
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sql query to return differences between two tables
...JOIN B ON (A.C = B.C)
WHERE A.C IS NULL OR B.C IS NULL
What you need to know in this case is, that when a record can be found in A, but not in B, than the columns which come from B will be NULL, and similarly for those, which are present in B and not in A, the columns from A will be null.
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Android Studio could not find any version that matches com.android.support:appcompat-v7:+
...ed invalidating cache and adding maven to build.gradle but nothing worked. Now just changed version 7:30.+ to 7:+ worked... Thanks a lot Osama yaccoub
– Jilson
Sep 17 at 9:48
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How to detect idle time in JavaScript elegantly?
...t.onkeypress = resetTimer;
function logout() {
alert("You are now logged out.")
//location.href = 'logout.html'
}
function resetTimer() {
clearTimeout(time);
time = setTimeout(logout, 3000)
// 1000 milliseconds = 1 second
}
};
And init the ...
html onchange event not working
...o "onchange" event that reports changes immediately, at least as far as I know. But there is a solution that works for all cases: set up a timing event using setInterval().
Let's say that your input field has an id and name of "city":
<input type="text" name="city" id="city" />
Have a glob...
How to Vertical align elements in a div?
...
Now that flexbox support is increasing, this CSS applied to the containing element would vertically center the contained item:
.container {
display: flex;
align-items: center;
}
Use the prefixed version if ...
Why does range(start, end) not include end?
...ameters represents the "start and end".
It is actually start and "stop".
Now, if it were the "end" value then, yes, you might expect that number would be included as the final entry in the sequence. But it is not the "end".
Others mistakenly call that parameter "count" because if you only ever us...