--%>
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 Certificates Define Certificates

    Define Certificates: They are digital documents attesting to the binding of a public key to an individual or another entity. They permit verification of the claim which a given public key does in fact fit in to a given individual. The certificates hel

    		•
  • Q : Risks associated while porting a c pre

    Q. 1 Explain number of issues which are faced while porting a c pre processor in java. These issues always have the probability that the code will show errors while trying to execute the code in java.  Q.2 : Software Requirement Specification or Requirements for the studen

    		•
  • Q : Define the term Critical section

    Critical section: It is a section of code in which there is potential for a race hazard. The critical sections made use of the synchronized statements or methods.

    		•
  • Q : Windows Communication Foundation or WCF

    Why did Microsoft develop the Windows Communication Foundation (WCF) technology?

    		•
  • Q : Explain Enumerated type Enumerated type

    Enumerated type: A data type-not directly accessible in Java - in which symbolic names are employed for a series of constant numeric values. They facilitate the evading of magic numbers. They can be simulated in the Java with fields i

    		•
  • Q : Environment Modeling in Java Pathfinder

    Environment Modeling: In JPF, Java class files can be processed in two different ways: A) As ordinary Java classes managed and executed by the host JVM (e.g., standard Java library classes, JPF implementation class

    		•
  • Q : What is Modal What is Modal : A dialog

    What is Modal: A dialog is a modal when its parent application is blocked from additional activity until the dialog has finished.

    		•
  • Q : Aggregation and containment in the

    Illustrate the basic difference between Aggregation and containment in the Programming?

    		•
  • Q : Problem on linear equations using Matlab

    Use Matlab to solve the following system of linear equations:2x + y + 3z = 12x + 6y + 8z = 36x + 8y + 18z = 5Capture Matlab code and the result in a text file.

    		•
  • Q : Explain Sign extension Sign extension :

    Sign extension: Whenever an integer value from a type with a specific range is stored in a variable with a larger range, Java employs sign extension to determine the resultant value. The most important bit in the original value is employed to fill the

    		•