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Articles by seetha
Page 6 of 6
What happens to MySQL temporary tables if MySQL session is ended?
Temporary table would be deleted if MySQL session terminates. After login again, on issuing the SELECT command we will find no data available in the database. Even our temporary table will not exist.
Read MoreWhat is meant by Java being 'write once run anywhere' language?
Unlike many other programming languages including C and C++, when Java is compiled, it is not compiled into platform specific machine, rather into platform independent byte code. This byte code is distributed over the web and interpreted by the Virtual Machine (JVM) on whichever platform it is being run on. Thus when you write a piece of Java code in a particular platform and generated an executable code .class file. You can execute/run this class file on any system the only condition is that the target system should have JVM (JRE) installed in it. In Short, If you have a ...
Read MoreWhat does import Java.util.* in Java do?
Java util package contains collection framework, collection classes, classes related to date and time, event model, internationalization, and miscellaneous utility classes. On importing this package, you can access all these classes and methods.Following table lists out the classes in the collection package.InterfacesDescriptionClassesCollectionCollection Interface represents a group of objects. It is a root interface of collection framework.Abstract CollectionSetIt is a dynamic group of unique elements. It does not store duplicate element.HashSetLinkedHashSetListThey are similar to sets with the only difference that they allow duplicate values in them.StackvectorArrayListLinkedListQueueIt is an arrangement of the type First-In-First-Out (FIFO).First element put in the queue is the ...
Read MoreIs final method inherited in Java?
No, we cannot override a final method in Java. The final modifier for finalizing the implementations of classes, methods, and variables. We can declare a method as final, once you declare a method final it cannot be overridden. So, you cannot modify a final method from a sub class. The main intention of making a method final would be that the content of the method should not be changed by any outsider. Example class Demo{ public final void demoMethod(){ System.out.println("Hello"); } } public class Sample extends Demo{ ...
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