--%>
Assignment Help - homework help

Explain Call-by-value

Call-by-value: The semantics of passing an argument to a method in which a copy of actual argument value is taken and positioned in a separate memory location, symbolized by the corresponding formal argument. As an outcome, assignment to the formal argument in a method can encompass no effect on the value stored in actual argument. This principle is frequently misunderstood in Java. This does not mean that an object referred to by an actual argument can’t be modified through the formal argument. Consider the illustration of sorting the array termed to by the variable numbers:

Arrays.sort(numbers);

The sort method will modify the order of the values stored in the object referred to by numbers. Though, it is not possible for the sort method to modify that array numbers refers to - a sorted copy, for example. Some languages give an argument passing semantics termed as call-by-reference, in which an actual argument's value might be modified. Java does not offer this, however.

   Related Questions in Programming Languages

  • Q : Define Out of scope Out of scope : It

    Out of scope: It is a variable is in scope as long as the program's flow of control is in the variable's defining block. Or else, this is out of scope.

    		•
  • Q : For creating a thread explain the limit

    For creating a thread explain the limit on per process.

    		•
  • Q : Explain the way to write the opening

    Explain the way to write the opening tag of an XHTML element.

    		•
  • Q : How can I check while a web page

    How can I check while a web page contains exact text?

    		•
  • Q : Define Well-known port Well-known port

    Well-known port: It is a port number at which a server provides a familiar service. For example, 80 is well-known port number for the servers employing the HyperText Transfer Protocol (abbreviated as HTTP).

    		•
  • Q : Perform Exception Handling with

    On occasion, some of Brewbean’s customers mistakenly leave an item out of a basket already checked out, therefore they create a new basket containing the missing items. Though they request that the baskets be combined and hence they are not charged extra shippin

    		•
  • Q : Explain Synchronized statement

    Synchronized statement: It is a statement in which an object-lock should be obtained for the target object prior to the body of the statement and can be entered. Employed to enclose a critical section in order to save a race hazard.

    		•
  • Q : State De Morgans Theorem De Morgan's

    De Morgan's Theorem: The two rules which can help to simplify Boolean expressions comprising multiple logical-not operators in combination with the other Boolean operators.

    		•
  • Q : What is the QuickTest Pro testing

    What is the QuickTest Pro testing process?

    		•
  • Q : What is Quotient Quotient: Whenever

    Quotient: Whenever integer division is executed, the outcome comprises of a quotient and a remainder. The quotient symbolizes the integer number of times which the divisor divides into the dividend. For example, in 5/3, 5 is the dividend and 3 is the

    		•