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Difference between return and exit in Bash functions
...unction. 0 is true but false is 1 in the shell, different from other prog langs.
For more info on functions:
http://www.linuxjournal.com/content/return-values-bash-functions
NOTE: The isdirectory function is for instructional purposes only. This should not be how you perform such an option in a r...
When does System.getProperty(“java.io.tmpdir”) return “c:\temp”
Just curious as to when System.getProperty("java.io.tmpdir") returns "c:\temp" . According to the java.io.File Java Docs -
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Recursively add files by pattern
...ou could combine git-ls-files with a filter:
git ls-files [path] | grep '\.java$' | xargs git add
Git doesn't provide any fancy mechanisms for doing this itself, as it's basically a shell problem: how do you get a list of files to provide as arguments to a given command.
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Java client certificates over HTTPS/SSL
I am using Java 6 and am trying to create an HttpsURLConnection against a remote server, using a client certificate.
The server is using an selfsigned root certificate, and requires that a password-protected client certificate is presented. I've added the server root certificate and the client c...
How to run a class from Jar which is not the Main-Class in its Manifest file
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You can create your jar without Main-Class in its Manifest file. Then :
java -cp MyJar.jar com.mycomp.myproj.dir2.MainClass2 /home/myhome/datasource.properties /home/myhome/input.txt
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When do Java generics require
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First - I have to direct you to http://www.angelikalanger.com/GenericsFAQ/JavaGenericsFAQ.html -- she does an amazing job.
The basic idea is that you use
<T extends SomeClass>
when the actual parameter can be SomeClass or any subtype of it.
In your example,
Map<String, Class<? ext...
Command prompt won't change directory to another drive
I'm trying to compile some java (learning java currently), and to do so I need to change command-prompt's directory (using javac).
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Java ArrayList how to add elements at the beginning
...(list);
list.add(elementForTop);
Collections.reverse(list);
If you use Java 8 streams, this answer might interest you.
Analysis
Time Complexity: O(n)
Space Complexity: O(1)
Looking at the JDK implementation this has a O(n) time complexity so only suitable for very small lists.
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SQL parser library for Java [closed]
Is there an open-source Java library for parsing SQL statements?
7 Answers
7
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Gradle, “sourceCompatibility” vs “targetCompatibility”?
...ity and sourceCompatibility maps to -target release and -source release in javac. Source is basically the source language level and target is the level of the bytecode that is generated.
More details can be found in the javac the cross compilation section.
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