J2SE Interview Preparation Guide Download PDF
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:
Application Programming Interface. The specification of how a programmer writing an application accesses the behavior and state of classes and objects.
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.
The arguments specified in a particular method call. See also formal parameter list.
American Standard Code for Information Interchange. A standard assignment of 7-bit numeric codes to characters. See also Unicode.
The acronym for the four properties guaranteed by transactions: atomicity, consistency, isolation, and durability.
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.
Refers to an operation that is never interrupted or left in an incomplete state under any circumstance.
The process by which an entity proves to another entity that it is acting on behalf of a specific identity.
Automatic conversion between reference and primitive types.
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.
A collection of graphical user interface (GUI) components that were implemented using native-platform versions of the components. These components provide that subset of functionality which is common to all native platforms. Largely supplanted by the Project Swing component set. See also Swing.
A reusable software component that conforms to certain design and naming conventions. The conventions enable beans to be easily combined to create an application using tools that understand the conventions.
In the Java programming language, any code between matching braces.
x = 1;
x = 1;
An operator that manipulates the bits of one or more of its operands individually and in parallel. Examples include the binary logical operators (&, |, ^), the binary shift operators (<< , >>, >>> ) and the unary one's complement operator (~).
An operator that has two arguments.
A Java keyword that defines a group of statements to begin executing if a value specified matches the value defined by a preceding switch keyword.
Machine-independent code generated by the Java compiler and executed by the Java interpreter.
A Java keyword used to resume program execution at the statement immediately following the current statement. If followed by a label, the program resumes execution at the labeled statement.
Refers to an expression or variable that can have only a true or false value. The Java programming language provides the boolean type and the literal values true and false.
Explicit conversion from one data type to another.