Java Interview Questions

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what is list?

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what is class?

Ans: java class is a specification of how to construct something and also called template. Java classes contain multiple fields , variable...
diferents between awt and swing?

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what is an object?

Ans: Object is a run time entity. A set of data combined with methods for manipulating that data. Three properties characterize obj...
differents between string and string buffer?

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Why threads block or enters to waiting state on I/O?

the thread blog or enters to waiting state in I/O answer comming soon........
What are Wrapper Classes ?

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what is abstraction

Ans: Java Abstraction means to show only the necessary details to the client of the object . without knowing the background of details we u...
what is thread?

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what is inheritance?

Ans: Java Inheritance defines an is-a relationship between a superclass and its subclasses. The child class can use the methods and variable...