--%>
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 : What is Binary operator Binary operator

    Binary operator: It is an operator taking two operands. Java has numerous binary operators, like the arithmetic operators +, -, *, / and %, and the Boolean operators &&, || and ^, among others.

    		•
  • Q : State the term a markup language State

    State the term a markup language?

    		•
  • Q : Explain Infinite loop Infinite loop :

    Infinite loop: The loop whose termination test never computes to false. At times this is a deliberate act on the portion of the programmer, employing a construct like:         whi

    		•
  • Q : Alice 2.2 bucking bronc How do i create

    How do i create the bucking bronco in alice 2.2

    		•
  • Q : Calculating Tax on an Order in SQL

    Process the following steps to make a procedure to compute the tax on an order. The BB_TAX table includes the states which need taxes to be submitted for Internet sales. When the state is not listed in the table, then no tax must be accessed on any order. Shopper&rsqu

    		•
  • Q : What is the QuickTest Pro testing

    What is the QuickTest Pro testing process?

    		•
  • Q : Create an applet of bounces in JAVA

    Create an applet that bounces a blue ball inside an applet using Thread.  The ball (diameter is 10) will start at position (0,0).  When the ball hits the edge of the applet, the ball should bounce off the edge at a randomly selected angle between 20 and 60 d

    		•
  • Q : Define the term Local inner class and

    Define the term Local inner class and Local variable: Local inner class: It is an inner class stated in a method. Local variable: It is a variable defined within

    		•
  • Q : What is Datagram Datagram : It is a

    Datagram: It is a packet of information passed between the two communicating procedures across a network. Both the Transmission Control Protocol (abbreviated as TCP) and the User Datagram Protocol (abbreviated as UDP) are indirectly comprised in sendi

    		•
  • Q : Determining group ID of new file

    Explain various options available in order to determine the group ID of new file?

    		•