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String comparison in bash. [[: not found
... Happend to me because i ran the script with sh, lots for frustration. Now i just have to redo everything i undid before finding this answer.
– Louis Loudog Trottier
May 16 '18 at 5:01
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PostgreSQL: How to change PostgreSQL user password?
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To Change Password
sudo -u postgres psql
then
\password postgres
now enter New Password and Confirm
then \q to exit
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How to use if-else option in JSTL
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I know I'm a bit late to the party, but <c:otherwise> seems a little verbose, eh?
– andronikus
Oct 27 '11 at 13:29
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What is “rvalue reference for *this”?
...n"; }
};
int main(){
test t;
t.f(); // OK
test().f(); // OK too
}
Now, onto why @Nicol's answer is atleast partly wrong. He says:
Note that this declaration changes the type of *this.
That is wrong, *this is always an lvalue:
§5.3.1 [expr.unary.op] p1
The unary * operator performs indir...
How to go back to previous page if back button is pressed in WebView?
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If using Android 2.2 and above (which is most devices now), the following code will get you what you want.
@Override
public void onBackPressed() {
if (webView.canGoBack()) {
webView.goBack();
} else {
super.onBackPressed();
}
}
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Is an array an object in java
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Until now I always assumed an object was synonymous with class instance and that arrays were a special language feature or something.
– Ruben9922
Aug 9 '17 at 12:40
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How to check if APK is signed or “debug build”?
As far as I know, in android "release build" is signed APK. How to check it from code or does Eclipse has some kinda of secret defines?
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How to iterate over a JSONObject?
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org.json.JSONObject now has a keySet() method which returns a Set<String> and can easily be looped through with a for-each.
for(String key : jsonObject.keySet())
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How to color the Git console?
...irst thing after you set "user.name/email" to introduce yourselves to Git. Now the variable defaults to "auto".
So you will see colors by default.
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Show all Elasticsearch aggregation results/buckets and not just 10
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Note that setting size:0 is now deprecated, due to memory issues inflicted on your cluster with high-cardinality field values. github.com/elastic/elasticsearch/issues/18838. Instead, use a real, reasonable number between 1 to 2147483647.
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