How to enable the Java keyword assert in Eclipse program-wise?
To be specific: Go to Run->run configuration select java application in left nav pan. right click and select New. select Arguments tab Add -ea in VM arguments.
Java
White spaces are required between publicId and systemId
The error message is actually correct if not obvious. It says that your DOCTYPE must have a SYSTEM identifier. I assume yours only has a public identifier. You’ll get the error with (for instance): You won’t with: Notice “” at the end in the second one — that’s the system identifier. The error message is … Read more
What is the size of a boolean variable in Java?
It’s virtual machine dependent.
java -version and javac -version showing different versions
I have java 7 and java 8 both installed on my windows system under C:\Program Files\Java In the environment’s path I specified the path of java 7 like this. %JAVA_HOME%/bin where JAVA_HOME = C:\Program Files\Java\jdk1.7.0_17 But when I type javac -version it shows javac 1.7.0_17 which makes sense but when I do java -version it … Read more
Using while loop as input validation [duplicate]
I’m trying to use while loop to ask the user to reenter if the input is not an integer for eg. input being any float or string I can’t think of a way to do this. I’ve just been introduced to java
Java Memcached Client
As the author of spymemcached, I’m a bit biased, but I’d say it’s mine for the following reasons: Designed from scratch to be non-blocking everywhere possible. When you ask for data, issue a set, etc… there’s one tiny concurrent queue insertion and you get a Future to block on results (with some convenience methods for … Read more
Java – ‘ ) ‘ expected error
should be: You have right closing parenthesis missing in your if conditions. PS: You should really be using an IDE like Eclipse to write your code which will help you immensely to overcome these simple syntax errors
Manually throw an exception
How would I manually throw an IndexOutOfBoundsException in Java and optionally print a message?
XY Plotting with Java
I have used jfreechart 100 times for different solutions.it is easy to learn as it has a Developer’s Guide and many more easy tutorials on Java2s.com. just google it and you will find much more Here is a demo of XY series
Where can I download the jar for org.apache.http package?
Apache HttpCore Updated with new link