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HashMap and int as key
...object internally for the key. So you can only use an object that inherits from Object (that is any object).
That is the function put() in HashMap and as you can see it uses Object for K:
public V put(K key, V value) {
if (key == null)
return putForNullKey(value);
int hash = hash(k...
Android Studio Google JAR file causing GC overhead limit exceeded error
...MaxHeapSize "4g"
}
and see if that helps.
(idea courtesy of this answer from Scott Barta)
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How do you force a CIFS connection to unmount
...umount -l (that's a lowercase L)
Lazy unmount. Detach the filesystem
from the filesystem hierarchy now, and
cleanup all references to the
filesystem as soon as it is not busy
anymore. (Requires kernel 2.4.11 or
later.)
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How do I get ruby to print a full backtrace instead of a truncated one?
When I get exceptions, it is often from deep within the call stack. When this happens, more often than not, the actual offending line of code is hidden from me:
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Getting a timestamp for today at midnight?
...
Also useful if you are using Carbon, which inherits from DateTime. Thus, you can also do new Carbon('today midnight') and then you can use all the Carbon stuff like ->subDays(6). See carbon.nesbot.com
– Christopher K.
Aug 28 '17 at 14:...
Java “lambda expressions not supported at this language level”
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Note from proposed edit: You can also configure language level for every module, File Menu → Project Structure → Modules, but by default it will the same as Project language level.
– user1516873
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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...ion ("bit scan reverse"). It's fast on some x86s (microcoded on others). From the manual:
Searches the source operand for the most significant set
bit (1 bit). If a most significant 1
bit is found, its bit index is stored
in the destination operand. The source operand can be a
register...
What kind of virtual machine is BEAM (the Erlang VM)?
From what I understand a virtual machine falls into two categories either "system virtual machine" or a "process virtual machine". It's kind of fuzzy to me where BEAM lies. Is there another kind of virtual machine I am not aware of?
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How to identify if the DLL is Debug or Release build (in .NET) [duplicate]
...at you are looking for (thanks to Mr. Black) there are tools like Dot Peek from JetBrains that will give you this information. With Dot Peek you double click on the assembly itself in the Assembly Explorer (not any files under the assembly) and it will show you all the Assembly attributes that he i...
How many characters can a Java String have?
I'm trying The Next Palindrome problem from Sphere Online Judge (SPOJ) where I need to find a palindrome for a integer of up to a million digits. I thought about using Java's functions for reversing Strings, but would they allow for a String to be this long?
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