Chapter 6 Methods 229 p) Recursion achieves repetition (Web hosting uk)
Chapter 6 Methods 229 p) Recursion achieves repetition through repeated calls. q) The best way to develop and maintain a large program is to divide it into several smaller program , each of which is more manageable than the original program. r) It is possible to define methods with the same , but different parameter lists. s) Recursion terminates when a is reached. t) Placing a semicolon after the right parenthesis that encloses the parameter list of a meth od definition is a error. u) The is a comma-separated list containing the declarations of the parameters received by the called method. v) The is the data type of the result returned from a called method. w) A is a signal that is sent when some action takes place, such as a button being clicked or a value being changed. 6.2 State whether each of the following is true or false. If false, explain why. a) Mathmethod Absrounds its parameter to the smallest integer. x b) Mathmethod Exp is the exponential method, e. c) Variable type float can be promoted to type double. d) Variable type charcannot be promoted to type int. e) A recursive method is one that calls itself. f) When a method recursively calls itself, it is known as the base case. g) 0! is equal to 1. h) Forgetting to return a value from a recursive method when one is needed results in a syn tax error. i) Infinite recursion occurs when a method converges on the base case. j) A recursive implementation of the Fibonaccimethod is always efficient. k) Any problem that can be solved recursively also can be solved iteratively. 6.3 For the following program, state the scope (either class scope or block scope) of each of the following elements: a) The variable x. b) The variable y. c) The method cube. d) The method paint. e) The variable yPos. public class CubeTest { int x; public void paint() { int yPos = 25; for ( x = 1; x <= 10; x++ ) { Console.WriteLine( x ); yPos += 15; } } public int cube( int y ) { return y * y * y; } }
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