--%>
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 : Explain Inheritance hierarchy

    Inheritance hierarchy: The relationship among super-classes and sub-classes is termed as an inheritance hierarchy. The single inheritance of classes means that each and every class has simply a single `parent' class and that Object class is the eventu

    		•
  • Q : What is Application programming

    Application programming interface (API): It is a set of definitions that you can make use of it in writing programs. In the perspective of Java, these are the classes, packages, and interfaces which can be utilized to build complex ap

    		•
  • Q : Define Application Application : It is

    Application: It is frequently used, simply as a synonym for the program. Though, in Java, the word is particularly employed of programs with a Graphical User Interface (GUI) which are not applets.

    		•
  • Q : Limit the Use of Pre-processor

    Limit the Use of Pre-processor Directives: The C pre-processor is powerful, but unrestricted use of it can lead to code that is hard to understand and analyze. Limit its use to inclusion of header files and simple macro definitions. Avoid features suc

    		•
  • Q : Explain the reason to not carry on

    Explain the reason to not carry on extending HTML.

    		•
  • Q : Explain Out-of-bounds value

    Out-of-bounds value: It is a redundant value employed to point out that a different action from the norm is needed at some point. The read technique of InputStream returns -1 to point out that the end of a stream has been reached, for illustration, ra

    		•
  • Q : BAT files and shell scripts Using the

    Using the Web as a resource for your investigation, find out and explain what BAT files and shell scripts contain, and what they are used for. In the light of your findings, discuss why an operating system would provide both a graphical user interface

    		•
  • Q : Reads a line of text and tests whether

    palindrome.asm -- reads a line of text and tests whether it is a palindrome. ## Register usage: ## $t1 - A. ## $t2 - B. ## $t3 - the character *A. ## $t4 - the character *B. ## $v0 - syscall parameter / return values. ## $a0 - s

    		•
  • Q : Input and output formatting in C++

    Input output formatting in C++: C++ support

    		•
  • Q : What is Bit manipulation operator Bit

    Bit manipulation operator: Operators, like &, | and ^, which are employed to examine and manipulate individual bits win the bytes of a data item. The shift operators, <<, >> and >>>, are too bit manipulation operators.

    		•