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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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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...
Why is an array not assignable to Iterable?
with Java5 we can write:
5 Answers
5
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How to get Scala List from Java List?
I have a Java API that returns a List like:
6 Answers
6
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Fastest way to iterate over all the chars in a String
In Java, what would the fastest way to iterate over all the chars in a String, this:
8 Answers
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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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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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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...
SQL parser library for Java [closed]
Is there an open-source Java library for parsing SQL statements?
7 Answers
7
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Is there a stopwatch in Java?
Is there a stopwatch in Java? On google I only find code of stopwatches which don't work - they always return 0 milliseconds.
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