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Why is 128==128 false but 127==127 is true when comparing Integer wrappers in Java?
Output:
7 Answers
7
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Find lines from a file which are not present in another file [duplicate]
...y a.txt and b.txt ), both of which has a list of names. I have already run sort on both the files.
4 Answers
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%Like% Query in spring JpaRepository
I would like to write a like query in JpaRepository but it is not returning anything :
9 Answers
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How to reference a file for variables using Bash?
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The short answer
Use the source command.
An example using source
For example:
config.sh
#!/usr/bin/env bash
production="liveschool_joe"
playschool="playschool_joe"
echo $playschool
script.sh
#!/usr/bin/env bash
source config.sh
echo ...
Detecting iOS / Android Operating system
I've done some research, and this question has come up, but not in the way I intend. I'm building a page for a client that is a QR code landing, which is a place to download an application. So he doesn't have to print out 2 QR codes on a page, I'd like to detect the current operating system (Apple...
Handling a colon in an element ID in a CSS selector [duplicate]
JSF is setting the ID of an input field to search_form:expression . I need to specify some styling on that element, but that colon looks like the beginning of a pseudo-element to the browser so it gets marked invalid and ignored. Is there anyway to escape the colon or something?
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JPA CascadeType.ALL does not delete orphans
I am having trouble deleting orphan nodes using JPA with the following mapping
11 Answers
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What exactly is nullptr?
We now have C++11 with many new features. An interesting and confusing one (at least for me) is the new nullptr .
14 Answe...
How do you use the “WITH” clause in MySQL?
I am converting all my SQL Server queries to MySQL and my queries that have WITH in them are all failing. Here's an example:
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Python argparse: Make at least one argument required
I've been using argparse for a Python program that can -process , -upload or both:
11 Answers
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