Sunday, 1 February 2015

JAVA J2SE - J2SE Interview Questions and Answers (Part6)

51. What is default ?
A Java keyword optionally used after all case conditions in a switch statement. If all case conditions are not matched by the value of the switch variable, the default keyword will be executed.

52. What is definition ?
A declaration that reserves storage (for data) or provides implementation (for methods). See also declaration.

53. What is delegation ?
An act whereby one principal authorizes another principal to use its identity or privileges with some restrictions.

54. What is deprecation ?
Refers to a class, interface, constructor, method or field that is no longer recommended, and may cease to exist in a future version.

55. What is derived from ?
Class X is "derived from" class Y if class X extends class Y. See also subclass, superclass.

56. What is distributed ?
Running in more than one address space.

57. What is distributed application ?
An application made up of distinct components running in separate runtime environments, usually on different platforms connected through a network. Typical distributed applications are two-tier (client/server), three-tier (client/middleware/server), and n-tier (client/multiple middleware/multiple servers).

58. What is double precision ?
In the Java programming language specification, describes a floating point number that holds 64 bits of data. See also single precision.

59. What is DTD ?
Document Type Definition. A description of the structure and properties of a class of XML files.

60. What is else ?
A Java keyword used to execute a block of statements in the case that the test condition with the if keyword evaluates to false.
More Questions & Answers :-
Part1  Part2  Part3  Part4  Part5  Part6

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