--%>

computer science

1. Here is a short program. It prints out the value of a variable "x". Ernie and Bert disagree about what will be printed: Ernie says, the value gets changed in "changeX" so it will print "7", and Bert says, no, when the function exits the changes get reversed and the value goes back to "5". Explain who is correct and why. int x = 5; void draw() { changeX(); print(x); } voidchangeX() { int x = 7; }

   Related Questions in Programming Languages

  • Q : Define Unions Unions: Unions in C and

    Unions: Unions in C and C++ are object overlays—aggregate quantities such as structs, except that each element of the union consists offset 0, and the total size of union is only as large as is required to hold its largest member (Kernighan and

  • Q : What is Behavior Behavior : It is the

    Behavior: It is the methods of a class which implement its behavior. A particular object's behavior is a mixture of the method definitions of its class and the present state of the object.

  • Q : Different layers in Windows Architecture

    Explain how many different layers comprise in Windows Architecture?

  • Q : What is Boundary error Boundary error :

    Boundary error: The errors which arise from programming mistakes prepared at the edges of a problem- indexing off the edge of an array, commencing with no items of data, loop termination and so forth. Boundary errors are a very general type of logical

  • Q : Explain Do loop Do loop : This is one

    Do loop: This is one of Java's three control structures employed for looping. The other two are the for loop and while loop. A do loop comprises of a loop body and a Boolean expression. The condition is tested subsequent to the loop body has been fini

  • Q : Explain VeriSoft VeriSoft (Godefroid,

    VeriSoft (Godefroid, 2005) is a model checker for C and C++; other languages can be used, but components in other languages are treated as black boxes. VeriSoft has been used to find defects in very large telecommunications programs (Chandra, Godefroi

  • Q : Explain Exclusive-or operator

    Exclusive-or operator: An exclusive-or operator (^) is both a Boolean operator and the bit manipulation operator. The Boolean version provides the value true when only one of its operands is true; or else it offers the value false. Likewise, the bit m

  • Q : What are Logical operators Logical

    Logical operators: The operators, like &&, ||, &, | and ^ which take two Boolean operands and generate a Boolean outcome. Employed as part of a Boolean expression, frequently in the condition of the control structure.

  • Q : "This" Pointer "this" pointer: In C++

    "this" pointer: In C++ uses a unique keyword called "this" to represent a object that

  • Q : Define Continue statement Continue

    Continue statement: A statement which might only be employed within the body of a loop. In case of a while loop or do loop, control passes instantly to the loop's terminating test. In case of a for loop, the control passes to the post-body update expr