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how to check the jdk version used to compile a .class file [duplicate]
... use javap -verbose MyClass | grep "major" it says major version: 50 which means Java Version 6. This is confusing. Does that mean - even though it was compiled with 8 but it can run on 6?
– Paramvir Singh Karwal
Nov 20 '18 at 13:32
...
How to create a drop shadow only on one side of an element?
...udo element is required.
#box {
background-color: #3D6AA2;
width: 160px;
height: 90px;
position: absolute;
top: calc(10% - 10px);
left: calc(50% - 80px);
}
.box-shadow:after {
content:"";
position:absolute;
width:100%;
bottom:1px;
z-ind...
PyPy — How can it possibly beat CPython?
...t's generally not quite as fast without the JIT compiler, I believe, which means PyPy is only faster for programs susceptible to JIT-compilation). CPython was never designed to be a highly optimising implementation of the Python language (though they do try to make it a highly optimised implementati...
Should sorting logic be placed in the model, the view, or the controller? [closed]
...troller needs to retrieve information from the model? By "sorting logic" I mean only the logic that is necessary to establish an ordering - in C# terms, that's providing an implementation of IComparer<T>. The remaining "boilerplate mechanics" of sorting, including the retrieval of data from th...
Is it safe to delete a void pointer?
...because some implementation did store size before allocated memory doesn't mean that it's a rule.
– anon
Jun 4 '09 at 21:23
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show 1 more co...
What does a just-in-time (JIT) compiler do?
... provide the compiled code to JVM, isn't it? Then it compiles it again you mean?
– Koray Tugay
Dec 31 '14 at 10:04
@Ko...
Rails migration: t.references with alternative name?
...n with this:
add_foreign_key :courses, :courses, column: :transferrable_as_id
add_foreign_key :courses, :courses, column: :same_as_id
Update
In Rails 5.1 and above you can add the foreign key in the migration in the create_table block like this:
create_table :courses do |t|
t.string :name
t.ref...
How can I find out the current route in Rails?
... always available in params[:controller] and params[:action]. However, outside of it, if you want to recognize the route, this API is not available anymore. It has now shifted to ActionDispatch::Routing and I haven't tried out the recognize_path on it yet.
– Swanand
...
AngularJs: Reload page
...
@OMGPOP What exactly do you mean by globally for all links?
– Alexandrin Rus
Aug 16 '15 at 22:49
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Android: How to create a Dialog without a title?
I'm trying to generate a custom dialog in Android.
I create my Dialog like this:
25 Answers
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