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Constructor overloading in Java - best practice
...his as well as other examples that the constructor definitions are written order of which uses the least to the most arguments in the constructor call. Is this standard Java style? Why?: In my opinion it would make sense to do it the opposite way that way you the first constructor definition you sh...
How to add an empty column to a dataframe?
...umns (single/multiple) to a DF. These columns get inserted in alphabetical order at the end of the DF.
This becomes advantageous compared to simple assignment in cases wherein you want to perform a series of chained operations directly on the returned dataframe.
Consider the same DF sample demonst...
How to use a servlet filter in Java to change an incoming servlet request url?
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@datakey: just either rearrange the ordering or add <dispatcher>FORWARD</dispatcher> to filter mapping.
– BalusC
Jan 17 '14 at 10:23
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How can I use external JARs in an Android project?
...o my project. I then added the JAR to the build path and checked it off in Order and Export.
12 Answers
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Seedable JavaScript random number generator
...a random generator function. SeedRandom can be called with no arguments in order to seed the returned random function with the current time, or it can be called with either 1 or 2 non-negative inters as arguments in order to seed it with those integers. Due to float point accuracy seeding with only ...
Show pop-ups the most elegant way
...up/modal approach, however think of this particular UX: Say a customer is ordering an item, and the UI presents a confirm order popup (so we've 'occupied' Adam's popup with content). Now we click send or buy or whatever from that popup, and there is an error whereby the user needs to amend that or...
Why are joins bad when considering scalability?
...spreading out, or paring down the repeated work to the bare essentials, in order to minimize resource use per work unit. To scale well, you don't do anything you don't need to in volume, and the things you actually do you make sure are done as efficiently as possible.
In that context, of course join...
Parsing CSV files in C#, with header
...ally map field headers, expecting instead that the columns are in the same order as the fields are declared in your type. I wouldn't use it, personally.
– Alastair Maw
Sep 20 '19 at 11:11
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How do I perform an IF…THEN in an SQL SELECT?
...columnname>
FROM <table>
You can even put case statements in an order by clause for really fancy ordering.
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How to make a phone call programmatically?
...198+","+1+","+1));
startActivity(callIntent);
for multiple ordered call
This is used to DTMF calling systems.
If call is drop then, you should pass more " , " between numbers.
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