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Java array reflection: isArray vs. instanceof
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If obj is of type int[] say, then that will have an array Class but not be an instance of Object[]. So what do you want to do with obj. If you are going to cast it, go with instanceof. If you are going to use reflection, then use .getClass().isArray().
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How to remove duplicate white spaces in string using Java?
...rtical tab, horizontal tab, carriage return, form feed, new line) as space then you can use the following regex to replace any number of consecutive white space with a single space:
str = str.replaceAll("\\s+"," ");
But if you want to replace two consecutive white space with a single space you sh...
Find which version of package is installed with pip
...eople were already familiar with "freezing" ruby gems, so pip borrowed the then-widely-used name.
– AdamKG
Feb 17 '14 at 21:54
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How can I make gdb save the command history?
...limited or if GDBHISTSIZE is either a negative number or the empty string, then the number of commands gdb keeps in the history list is unlimited".
set history size <size>
A related command is set history remove-duplicates <count>. The command is described as "Control the removal of d...
git stash blunder: git stash pop and ended up with merge conflicts
...it checkout as shown below, but it thinks the files are still unmerged. I then tried replacing the files and doing a git checkout again and same result. I event tried forcing it with -f flag. Any help would be appreciated!
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Assign variable in if condition statement, good practice or not? [closed]
...ase the function returns a boolean – like I said in my above comment – then the conditional works as expected. But if the function returns a boolean (as in my example) then the whole construct is kind of non-sensical; clearly my line of thinking was – judging from the example – that the func...
How can I scroll to a specific location on the page using jquery?
..., even in plain JavaScript it's pretty easy. You give an element an id and then you can use that as a "bookmark":
<div id="here">here</div>
If you want it to scroll there when a user clicks a link, you can just use the tried-and-true method:
<a href="#here">scroll to over there...
Where is Xcode's build folder?
...n see where the build directory is by going to File->Workspace Settings then look at Build Location
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RuntimeException: Unable to instantiate application
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Yes hitting the home button on my phone then running this again removes this error for me as well.
– Aggressor
Nov 14 '14 at 18:31
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How do I enable standard copy paste for a TextView in Android?
...itially hidden and you are showing it programatically using setVisibility, then you need to use textView.setTextIsSelectable(true) to make this work. It won't work via xml in that case.
– Praveen Singh
Nov 4 '17 at 19:20
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