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What is hash Map
ActionForm is javabean which shows the form inputs containing the request parameters from the View referencing the Action bean.
How do you decide when to use HashMap and when to use TreeMap? When we want to perform deletion, insertion and locate elements in a Map then HashMap is used. Whereas TreeMa
A MapMessage carries name-value pair as its payload. Therefore its payload is same to the java.util.Properties object of Java. The values can be Java primitives or their wrappers
Spring is an open source framework created to address the difficulty of enterprise application development. One of the chief benefits of the Spring framework is its layered archite
What is Externalizable interface? Externalizable is an interface which have two methods readExternal and writeExternal. These methods give you a control over the serialization
What is the difference among using bind() and rebind() methods of Naming Class? Ans) Bind method (String name) binds the specified name to a remote object whereas rebind(String
frequently used java array method
What is the Comparable interface? Comparable interface is used to sort arrays and collections of objects using collections.sort() and java.utils. Objects of the class implement
What is JAR archives? JAR archives are ZIP archives along with a different extension. They contain a hierarchy of files and directories. In spirit a JAR file can take the place
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