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Java Generics Wildcarding With Multiple Classes
I want to have a Class object, but I want to force whatever class it represents to extend class A and implement interface B.
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Django select only rows with duplicate field values
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C++ map access discards qualifiers (const)
The following code says that passing the map as const into the operator[] method discards qualifiers:
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How does “make” app know default target to build if no target is specified?
Most linux apps are compiled with:
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How can I make gdb save the command history?
How can I set up gdb so that it saves the command history? When starting a new gdb session I'd like to use the arrow up keys to access the commands of the previous sessions.
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How to optimize imports automatically after each save in IntelliJ IDEA
I want to learn how can I automatically optimize imports after each save as we do Eclipse( save actions ).
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instanceof Vs getClass( )
I see gain in performance when using getClass() and == operator over instanceOf operator.
4 Answers
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Git submodule push
If I modify a submodule, can I push the commit back to the submodule origin, or would that require a clone?
If clone, can I store a clone inside another repository?
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Count the occurrences of DISTINCT values
I am trying to find a MySQL query that will find DISTINCT values in a particular field, count the number of occurrences of that value and then order the results by the count.
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How to get last inserted row ID from WordPress database?
My WordPress plugin has a table with a AUTO_INCREMENT primary key field called ID. When a new row is inserted into the table, I'd like to get the ID value of the insertion.
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