The following exception is very common if you are the beginner for hibernate. SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in SLF4J: Found binding in SLF4J: Found binding in …
Hi in this struts tutorial we will discuss about struts 2 tutorial covers all the topics of Struts 2 Framework with simplified examples. The struts framework was initially created by Craig McClanahan and donated to …
We can sort the elements of: String objects Wrapper class objects User-defined class objects Collections class provides static methods for sorting the elements of collection.If collection elements are of Set type, we can use TreeSet. …
The HashMap class is roughly equivalent to Hashtable, except that it is non synchronized and permits nulls. (HashMap allows null values as key and value whereas Hashtable doesn’t allow nulls). HashMap does not guarantee that …
A Hashtable is an array of list.Each list is known as a bucket.The position of bucket is identified by calling the hashcode() method. A Hashtable contains values based on the key. It implements the Map …
Both TreeMap & HashMap are two different implementations of the Map interface. Even though this post is titled “TreeMap vs HashMap” I would like to say how they are connected and how much similar they …
TreeMap class A TreeMap contains values based on the key. It implements the NavigableMap interface and extends AbstractMap class. It contains only unique elements. It cannot have null key but can have multiple null values. …
