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How to subtract X days from a date using Java calendar?
Anyone know a simple way using Java calendar to subtract X days from a date?
10 Answers
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R: rJava package install failing
When installing rJava using the install.packages("rJava") command I get the following error:
16 Answers
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Error to run Android Studio
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Check if your Java JDK is installed correctly
dpkg --list | grep -i jdk
If not, install JDK
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update && sudo apt-get install oracle-java8-installer
After the installatio...
INSERT IF NOT EXISTS ELSE UPDATE?
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Have a look at http://sqlite.org/lang_conflict.html.
You want something like:
insert or replace into Book (ID, Name, TypeID, Level, Seen) values
((select ID from Book where Name = "SearchName"), "SearchName", ...);
Note that any field not in the insert l...
Real differences between “java -server” and “java -client”?
Is there any real practical difference between "java -server" and "java -client"?
11 Answers
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Why do python lists have pop() but not push()
...t.append in early 1991. By comparison, here's part of a discussion on comp.lang.python about adding pop in 1997. Guido wrote:
To implement a stack, one would need
to add a list.pop() primitive (and
no, I'm not against this particular
one on the basis of any principle).
list.push() cou...
How to get year, month, day, hours, minutes, seconds and milliseconds of the current moment in Java?
...th, day, hours, minutes, seconds and milliseconds of the current moment in Java? I would like to have them as Strings .
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Error - trustAnchors parameter must be non-empty
...ere) and understand what truststore is being used you can add the property javax.net.debug=all and then filter the logs about truststore. You can also play with the property javax.net.ssl.trustStore to specify a specific truststore. For example :
java -Djavax.net.debug=all -Djavax.net.ssl.trus...
Java: Path vs File
For new applications written in Java 7, is there any reason to use a java.io.File object any more or can we consider it deprecated?
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What is Java EE? [duplicate]
I realize that literally it translates to Java Enterprise Edition. But what I'm asking is what does this really mean? When a company requires Java EE experience, what are they really asking for? Experience with EJBs? Experience with Java web apps?
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