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Where is JAVA_HOME on macOS Mojave (10.14) to Lion (10.7)?
...ge or Oracle JDK installed,
adding one of the following lines to your ~/.bash_profile file will set the environment variable accordingly.
export JAVA_HOME="$(/usr/libexec/java_home -v 1.6)"
or
export JAVA_HOME="$(/usr/libexec/java_home -v 1.7)"
or
export JAVA_HOME="$(/usr/libexec/java_home -v 1.8...
Check if a given key already exists in a dictionary
I wanted to test if a key exists in a dictionary before updating the value for the key.
I wrote the following code:
16 Answ...
how to set a value for a span using JQuery
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You can do:
$("#submittername").text("testing");
or
$("#submittername").html("testing <b>1 2 3</b>");
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What's the difference between RANK() and DENSE_RANK() functions in oracle?
What's the difference between RANK() and DENSE_RANK() functions? How to find out nth salary in the following emptbl table?
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delete vs delete[] operators in C++
What is the difference between delete and delete[] operators in C++?
7 Answers
7
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Can I extend a class using more than 1 class in PHP?
If I have several classes with functions that I need but want to store separately for organisation, can I extend a class to have both?
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Python append() vs. + operator on lists, why do these give different results?
... the original array. The array.append operation inserts the array (or any object) into the end of the original array, which results in a reference to self in that spot (hence the infinite recursion).
The difference here is that the + operation acts specific when you add an array (it's overloaded lik...
How to install Hibernate Tools in Eclipse?
What is the proper way to install Hibernate Tools in Eclipse as a plugin?
The Hibernate site doesn't really give any instructions.
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SQL “select where not in subquery” returns no results
Disclaimer: I have figured out the problem (I think), but I wanted to add this issue to Stack Overflow since I couldn't (easily) find it anywhere. Also, someone might have a better answer than I do.
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'AND' vs '&&' as operator
I have a codebase where developers decided to use AND and OR instead of && and || .
10 Answers
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