More than 3000 questions in repository. There are more than 900 unanswered questions. Click here and help us by providing the answer. Have a video suggestion. Click Correct / Improve and please let us know.
Ans. Object is a run time entity whose state is stored in fields and behavior is shown via methods. Methods operate on an object's internal state and serve as the primary mechanism for object-to-object communication.
Help us improve. Please let us know the company, where you were asked this question :
Ans. A class is a blue print or Mold using which individual objects are created. A class can contain fields and methods to describe the behavior of an object.
Help us improve. Please let us know the company, where you were asked this question :
Ans. The finally keyword is used to create a block of code that follows a try block. A finally block of code always executes, whether or not an exception has occurred.
Help us improve. Please let us know the company, where you were asked this question :
Ans. It is a collection of element which cannot contain duplicate elements. The Set interface contains only methods inherited from Collection and adds the restriction that duplicate elements are prohibited.
Help us improve. Please let us know the company, where you were asked this question :
Ans. Break statement results in the termination of the statement to which it applies (switch, for, do, or while). A continue statement is used to end the current loop iteration and return control to the loop statement.
Help us improve. Please let us know the company, where you were asked this question :
Ans. The size is the number of elements actually stored in the vector, while capacity is the maximum number of elements it can store at a given instance of time.
Help us improve. Please let us know the company, where you were asked this question :
Ans. An enumeration is an interface containing methods for accessing the underlying data structure from which the enumeration is obtained. It allows sequential access to all the elements stored in the collection.
Help us improve. Please let us know the company, where you were asked this question :
Ans. Java expects the superclass ( Object Class ) constructor to be called while creation of any object. So super constructor is called in case there are no instance variables to initialize.
Help us improve. Please let us know the company, where you were asked this question :
Q320. If you have access to a function that returns a random integer from one to five, write another function which returns a random integer from one to seven.
Ans. PATH is the variable that holds the directories for the OS to look for executables. CLASSPATH is the variable that holds the directories for JVM to look for .class files ( Byte Code ).
Help us improve. Please let us know the company, where you were asked this question :
Ans. http protocol on its own is stateless. So it helps in identifying the relationship between multiple stateless request as they come from a single source.
Help us improve. Please let us know the company, where you were asked this question :
Ans. Session info in the request can be intercepted and hence a vulnerability. Cookie can be read and write by respective domain only and make sure that right session information is being passed by the client.
Help us improve. Please let us know the company, where you were asked this question :
LikeDiscussCorrect / Improve  j2ee   servlets   session   session management   web applications   cookies   httpsession   architecture
Ans. Yes. Methods invoked from within a finally block can throw an exception. Failure to catch and handle such exceptions results in the abrupt termination of the entire try block.
Help us improve. Please let us know the company, where you were asked this question :