Software Engineering (10th Edition)
10th Edition
ISBN: 9780133943030
Author: Ian Sommerville
Publisher: PEARSON
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Chapter 15, Problem 15.9E
Explanation of Solution
Requirement of adaptors in integrated system:
Integrated systems are the systems where two or more application systems work together to perform a particular task and adaptors are used to integrate them. The requirements of adapters are as follows:
- These help in combining the newly developed systems with the existing systems.
- It works as an API in the new system and existing system.
- It allows the interaction among the components of both the systems.
- In some systems, the output of the existing system acts as the input to newly developed system, so in this case adaptors are required...
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7. See the code below and solve the following.
public class Test {
public static void main(String[] args) {
int result = 0;
}
result = fn(2,3);
System.out.println("The result is:
+ result);
// fn(x, 1) = x
// fn(x, y)
=
fn(x, y-1) + 2, when y>1
public static int fn(int x, int y) {
if (x <= 1)
return x;
else
return fn(x, y-1) + 2;
}
}
7-1. This program has a bug that leads to infinite recursion. Modify fn(int x, int y) method to fix
the problem. (2 point)
7-2. Manually trace the recursive call, fn(2,3) and show the output (step by step). (2 point)
7-3. Can you identify the Base Case in recursive method fn(int x, int y)? (1 point)
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