J2SE Interview Preparation Guide
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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 language. It is the Java Platform used to deploy portable applications for general use. In practical terms, Java SE consists of a virtual machine. So learn J2SE by this Java Platform, Standard Edition Interview Questions with Answers guide

214 J2SE Questions and Answers:

1 :: What is Java API?

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

2 :: What is applet?

A component that typically executes in a Web browser, but can execute in a variety of other applications or devices that support the applet programming model.

3 :: What is actual parameter list?

The arguments specified in a particular method call. See also formal parameter list.

4 :: What is ASCII?

American Standard Code for Information Interchange. A standard assignment of 7-bit numeric codes to characters. See also Unicode.

5 :: What is ACID?

The acronym for the four properties guaranteed by transactions: atomicity, consistency, isolation, and durability.

6 :: What is access control?

The methods by which interactions with resources are limited to collections of users or programs for the purpose of enforcing integrity, confidentiality, or availability constraints.

7 :: What is atomic?

Refers to an operation that is never interrupted or left in an incomplete state under any circumstance.

8 :: What is authentication?

The process by which an entity proves to another entity that it is acting on behalf of a specific identity.

9 :: What is autoboxing?

Automatic conversion between reference and primitive types.

10 :: What is abstract?

A Java keyword used in a class definition to specify that a class is not to be instantiated, but rather inherited by other classes. An abstract class can have abstract methods that are not implemented in the abstract class, but in subclasses.