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java.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has
...gnoring the remnant of the code. For example:
protected void doXxx() {
if (someCondition) {
sendRedirect();
}
forward(); // This is STILL invoked when someCondition is true!
}
This is thus actually not true. They do certainly not behave differently than any other Java methods (e...
NUnit Test Run Order
...Your unit tests should each be able to run independently and stand alone. If they satisfy this criterion then the order does not matter.
There are occasions however where you will want to run certain tests first. A typical example is in a Continuous Integration situation where some tests are long...
Exit Shell Script Based on Process Exit Code
...pt that executes a number of commands. How do I make the shell script exit if any of the commands exit with a non-zero exit code?
...
When should I use Write-Error vs. Throw? Terminating vs. non-terminating errors
...
Write-Error should be used if you want to inform the user of a non-critical error. By default all it does is print an error message in red text on the console. It does not stop a pipeline or a loop from continuing. Throw on the other hand produces what...
Simple state machine example in C#?
...on(CurrentState, command);
ProcessState nextState;
if (!transitions.TryGetValue(transition, out nextState))
throw new Exception("Invalid transition: " + CurrentState + " -> " + command);
return nextState;
}
public ProcessState M...
@class vs. #import
... any circular inclusions. I also understand that an #import is a simple ifndef so that an include only happens once.
16...
How to create a MySQL hierarchical recursive query
...cte
on p.parent_id = cte.id
)
select * from cte;
The value specified in parent_id = 19 should be set to the id of the parent you want to select all the descendants of.
MySQL 5.x
For MySQL versions that do not support Common Table Expressions (up to version 5.7), you would achieve this ...
deny directory listing with htaccess
...
Options -Indexes should work to prevent directory listings.
If you are using a .htaccess file make sure you have at least the "allowoverride options" setting in your main apache config file.
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How do I break out of a loop in Perl?
...h, I found it. You use last instead of break
for my $entry (@array){
if ($string eq "text"){
last;
}
}
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...
Generate unique random numbers between 1 and 100
...arr.length < 8){
var r = Math.floor(Math.random() * 100) + 1;
if(arr.indexOf(r) === -1) arr.push(r);
}
console.log(arr);
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