Core Java Technical Interview Questions And Answers PDF Download

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Here Is the Core Java Technical Interview Questions And Answers.

Please see the attached file along with this

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[koushal]

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[jenny2675]

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1. Can we define private and protected modifiers for variables in interfaces? - No
2. What is Externalizable? - Externalizable is an Interface that extends Serializable Interface. And sends data into Streams in Compressed Format. It has two methods, writeExternal(ObjectOuput out) and readExternal(ObjectInput in)
3. What modifiers are allowed for methods in an Interface? - Only public and abstract modifiers are allowed for methods in interfaces.
4. What is a local, member and a class variable? - Variables declared within a method are “local” variables. Variables declared within the class i.e not within any methods are “member” variables (global variables). Variables declared within the class i.e not within any methods and are defined as “static” are class variables

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