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Places where JavaBeans are used?
...an use it to create a list of users wherein you store the data of the user table in the database:
List<User> users = new ArrayList<User>();
while (resultSet.next()) {
User user = new User();
user.setId(resultSet.getLong("id"));
user.setName(resultSet.getString("name"));
u...
ADO.NET DataRow - check for column existence
...
You can simply check like this:
return row.Table.Columns.Contains(columnName);
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Logging levels - Logback - rule-of-thumb to assign log levels
... at WARN actually get logged on my deployment configured with ERROR?" The table says, NO.
"Will a logging code line that logs at WARN actually get logged on my deployment configured with DEBUG?" The table says, YES.
from logback documentation:
In a more graphic way, here is how the selection...
Dynamically select data frame columns using $ and a character value
...ldname)) {
print("Bad file column name")
}
# Here we use the hash table implementation where
# we have a string key and list value so we need actual strings,
# not Factors
file[cptcodefieldname] = as.character(file[cptcodefieldname])
file[icdcodefieldname] = as.character(file[icdcodefieldn...
What's quicker and better to determine if an array key exists in PHP?
...y search function, it only checks the presence of a variable in the symbol table and will not iterate over the array. array_key_exists on the other hand will iterate/search for the keys in the first dimension of the specified array.
– Rain
Apr 22 at 3:16
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Sql Server equivalent of a COUNTIF aggregate function
...ver 2012) without changing the 'count' to a 'sum' and the same logic is portable to other 'conditional aggregates'. E.g., summing based on a condition:
SELECT SUM(CASE WHEN myColumn=1 THEN AD_CurrentView.NumberColumn ELSE 0 END)
FROM AD_CurrentView
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Converting HTML files to PDF [closed]
...exisiting (X)HTML-document. The input files (reports) use a rather simple, table-based layout, so support for really fancy JavaScript/CSS stuff is probably not needed.
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Hidden features of Android development?
...us requests for an action to be completed (Eg. The Where app can request a table booking from the Open Table app).
They can request an unknown application to complete an action without needing to know which application(s) can fulfill that request
Your app can fulfill requests from unknown apps to...
How do I check to see if a value is an integer in MySQL?
... matching the string to a regular expression. Simply do
select field from table where field REGEXP '^-?[0-9]+$';
this is reasonably fast. If your field is numeric, just test for
ceil(field) = field
instead.
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How to print HTML content on click of a button, but not the page? [duplicate]
...
I came across another elegant solution for this:
Place your printable part inside a div with an id like this:
<div id="printableArea">
<h1>Print me</h1>
</div>
<input type="button" onclick="printDiv('printableArea')" value="print a div!" />
Now let'...