Rename a file using Java
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Java
org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when ‘hibernate.dialect’ not set
First remove all of your configuration Spring Boot will start it for you. Make sure you have an application.properties in your classpath and add the following properties. If you really need access to a SessionFactory and that is basically for the same datasource, then you can do the following (which is also documented here although for XML, not JavaConfig). That way … Read more
Exception in thread “main” java.lang.ArrayIndexOutOfBoundsException: 0 error in Java
When i tried running this code I get this error..I dont know where i went wrong..
What is the best math library to use with java?
I want to use math functions for data mining and analytics purpose. I need an opinion about a library that I can use for this purpose with java. Do you have any recommendations?
What is Java String interning?
http://docs.oracle.com/javase/7/docs/api/java/lang/String.html#intern() Basically doing String.intern() on a series of strings will ensure that all strings having same contents share same memory. So if you have list of names where ‘john’ appears 1000 times, by interning you ensure only one ‘john’ is actually allocated memory. This can be useful to reduce memory requirements of your program. But … Read more
What is Java String interning?
http://docs.oracle.com/javase/7/docs/api/java/lang/String.html#intern() Basically doing String.intern() on a series of strings will ensure that all strings having same contents share same memory. So if you have list of names where ‘john’ appears 1000 times, by interning you ensure only one ‘john’ is actually allocated memory. This can be useful to reduce memory requirements of your program. But … Read more
What is the best math library to use with java?
I want to use math functions for data mining and analytics purpose. I need an opinion about a library that I can use for this purpose with java. Do you have any recommendations?
What is Java String interning?
http://docs.oracle.com/javase/7/docs/api/java/lang/String.html#intern() Basically doing String.intern() on a series of strings will ensure that all strings having same contents share same memory. So if you have list of names where ‘john’ appears 1000 times, by interning you ensure only one ‘john’ is actually allocated memory. This can be useful to reduce memory requirements of your program. But … Read more
Getting java.net.SocketTimeoutException: Connection timed out in android
I’ve searched all over the web and after reading lot of docs regarding connection timeout exception, the thing I understood is that, preventing SocketTimeoutException is beyond our limit. One way to effectively handle it is to define a connection timeout and later handle it by using a try-catch block. Hope this will help anyone in future who are facing … Read more
How to import a .cer certificate into a java keystore?
If you want to authenticate you need the private key – there is no other option. A certificate is a public key with extra properties (like company name, country,…) that is signed by some Certificate authority that guarantees that the attached properties are true. .CER files are certificates and don’t have the private key. The private … Read more