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String is immutable. What exactly is the meaning? [duplicate]
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A string is a char[] containing a series of UTF-16 code units, an int offset into that array, and an int length.
For example.
String s
It creates space for a string reference. Assigning copies references around but does not modify the...
Retrieving the text of the selected in element
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function getSelectedText(elementId) {
var elt = document.getElementById(elementId);
if (elt.selectedIndex == -1)
return null;
return elt.options[elt.selectedIndex].text;
}
var text = getSelectedText('test');
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Twitter bootstrap scrollable table
...able;
table-layout: fixed;
}
table{
height:300px; // <-- Select the height of the table
display: -moz-groupbox; // Firefox Bad Effect
}
tbody{
overflow-y: scroll;
height: 200px; // <-- Select the height of the body
width: 100%;
position: absolute;
}...
How to swap files between windows in VIM?
...ndows", you can use the following keyboard sequence to swap the windows:
Select window A (either with mouse or with keyboard commands)
Press <c-w>y (yanking the buffer number)
Select window B
Press <c-w>pp (pasting the buffer)
Select window A
Press <c-w>pp (pasting the buffer aga...
How do I make a JAR from a .java file?
... project in your IDE and put your Java files inside of the project folder.
Select the project in the IDE and export the project as a JAR. Double check that the appropriate java files are selected when exporting.
You can always do this all very easily with the command line. Make sure that you are i...
SQL, Postgres OIDs, What are they and why are they useful?
...ned system column oid will no longer be invisible by default. Performing a SELECT * will now include this column. Note that this extra “surprise” column may break naïvely written SQL code.
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What's the reason for “Error:Cannot determine Java VM executable in selected JDK”?
...ettings from project context menu (or default hit F4), then from left tab select Project and point correct Project SDK on dropdown.
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How to get the number of Characters in a String?
How can I get the number of characters of a string in Go?
7 Answers
7
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CreateProcess error=206, The filename or extension is too long when running main() method
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In intellij there is an option to 'shorten command line', select 'JAR manifest' or '@argFiles' would solve the problem, basically it will put your lengthy class path into a jar file or a temp file
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Ruby on Rails: getting the max value from a DB column
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one more way
Bar.select("Max(bar) as max_bar").first.max_bar
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