J2SE Interview Questions and Answers will teach you now that Java Platform, Standard Edition or Java SE is a widely used platform for programming in the Java. 8 Jul j2se interview questions .. Answer of 15th question is false, please check and edit with appropriate answer. ReplyDelete. काव्य संग्रह. 8 Jan 50 Best Java J2SE Interview Questions and Answers, Java J2SE Multiple choice Questions and Answers.

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In Java, there are three access modifiers: What is difference between Array and ArrayList? A Java keyword used to resume program execution at the end of the current loop.


This phase can either make or break the opportunity. The elements in a TreeSet are sorted, and thus, the add, remove, and contains methods have time complexity of O logn.

By extending Thread class 2. Over a million developers have joined DZone. What Is Java Database Connectivity jdbc? See Java Remote Method Invocation.

Top + J2SE Interview Questions – Best J2SE Interview Questions and Answers | Wisdom Jobs

Since the collection classes are actually data structures, we usually use the Big-O notation to chose the best implementation to use, based on time, memory answeds performance. A Java keyword that defines a block of statements that may throw a Java language exception. Also, Iterators allow the caller to remove elements from the underlying collection, something which is not possible with Enumerations.

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Please read and accept our website Terms and Privacy Policy to post a comment. What are the two types of Exceptions in Java?

Java Interview Questions and Answers – The ULTIMATE List

There are 3 distinct editions of the Java Platform: One small error on hashCode and equals: What is access control? How are the elements of a GridBagLayout organized? American Standard Code for Information Interchange.

What is Autoboxing and Unboxing? Which one would you prefer and why? It may have groups to simplify setting of security policies. What is the relationship between an event-listener interface and an event-adapter class? Deserialisation is the reverse process of converting an object from inyerview flattened state to a live object.

What is the difference between applets loaded over the internet and applets loaded via the file system? A process can have several threads running concurrently, each performing a different job, such as waiting m2se events or performing a time-consuming job that the program doesn’t need to complete before going on.

See also super class, subclass. Autoboxing is the ansqers conversion made by the Java compiler between the primitive types and their corresponding object wrapper classes.

J2SE Interview Questions & Answers

A Web server hosts Web sites, provides support for HTTP and other protocols, and executes server-side programs such as CGI scripts or servlets that perform certain functions. The marks and a-f or equivalently A-F represent the digits 0 through When an object is serialized, the values of its transient fields are not included in the serial representation, while the values of its non-transient fields are included.


The specification of how a programmer writing an application accesses the behavior and state of classes and objects.

I agree to the Terms and Privacy Policy. Finally, Java applets typically use a restrictive security policy, while Java applications usually use more relaxed security policies. How are the elements of a BorderLayout organized? The supertypes of a j2we are all the interfaces and classes that are extended or implemented by that type.

This is a reserved Java keyword.

What Is Object-oriented Design? In the Java programming language, any code between matching braces. What Is Local Variable?

The last and — certainly not — the least important phase is the follow-up. Define Class in Java. Also called a static method.

Also called simply a method. The different types of directives are shown below:.