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No Exception while type casting with a null in java
...out getting any exception.
The println method does not throw null pointer because it first checks whether the object is null or not. If null then it simply prints the string "null". Otherwise it will call the toString method of that object.
Adding more details: Internally print methods call String...
Rearrange columns using cut
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For the cut(1) man page:
Use one, and only one of -b, -c or -f. Each LIST is made up of
one
range, or many ranges separated by commas. Selected input is written
in the same order that it is read, and is written exactly once.
It reaches field 1 f...
How to clone a Date object?
Assigning a Date variable to another one will copy the reference to the same instance. This means that changing one will change the other.
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What causes “Unable to access jarfile” error?
...te my program without using an IDE.
I've created a jar file and an exectuable jar file. When
I double click the exe jar file, nothing happens, and when I try to use the command in cmd it gives me this:
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Can I get the name of the currently running function in JavaScript?
Is it possible to do this:
19 Answers
19
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Reserved keywords in JavaScript
What JavaScript keywords (function names, variables, etc) are reserved?
8 Answers
8
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How to find and turn on USB debugging mode on Nexus 4
In settings on my Nexus 4 device there isn't any "USB debugging options" item. How do I find and turn on USB debugging mode on Nexus 4?
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How do I resize an image using PIL and maintain its aspect ratio?
Is there an obvious way to do this that I'm missing? I'm just trying to make thumbnails.
19 Answers
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How to set selected item of Spinner by value, not by position?
I have a update view, where I need to preselect the value stored in database for a Spinner.
25 Answers
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Is there a way to avoid null check before the for-each loop iteration starts? [duplicate]
... time I have to iterate over a collection I end up checking for null, just before the iteration of the for-each loop starts. Like this:
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