The following method is designed to count the number of odd numbers in an array. public int countOdds (int[] array) { return countOddsHelper (array, 0, array.length); } private int countOddsHelper (int[] array, int start, int stop) { int count = 0; if(start < stop) { } if(array[start] % 2 == 1) { count++; countOddsHelper (array, start+1, stop); } } return count; Which of the following is true if the method is invoked with a non-empty array? The code will run, but then will either crash or go into infinite recursion. none of these is correct There is a compiler (syntax) error. The code will run, but there is a logical error. The code is correct.

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
icon
Related questions
Question

Java

**The following method is designed to count the number of odd numbers in an array.**

```java
public int countOdds(int[] array) {
    return countOddsHelper(array, 0, array.length);
}

private int countOddsHelper(int[] array, int start, int stop) {
    int count = 0;
    if(start < stop) {
        if(array[start] % 2 == 1) {
            count++;
        }
        countOddsHelper(array, start+1, stop);
    }
    return count;
}
```

**Which of the following is true if the method is invoked with a non-empty array?**

- ☐ The code will run, but then will either crash or go into infinite recursion.
- ☐ None of these is correct.
- ☐ There is a compiler (syntax) error.
- ☐ The code will run, but there is a logical error.
- ☐ The code is correct.

**Explanation:**

The method `countOdds` is intended to count the number of odd integers in an array by invoking the helper method `countOddsHelper`. The method `countOddsHelper` uses recursion to iterate through the array, checking each element to see if it is odd and attempting to increment the `count` variable if the condition is met.

**Logical Flaw:**

- The `countOddsHelper` method lacks accumulation of the count from recursive calls. The `count` variable is reset to zero with each call, so it doesn't properly accumulate the number of odd numbers.

**Correct Answer:**

- The code will run, but there is a logical error.
Transcribed Image Text:**The following method is designed to count the number of odd numbers in an array.** ```java public int countOdds(int[] array) { return countOddsHelper(array, 0, array.length); } private int countOddsHelper(int[] array, int start, int stop) { int count = 0; if(start < stop) { if(array[start] % 2 == 1) { count++; } countOddsHelper(array, start+1, stop); } return count; } ``` **Which of the following is true if the method is invoked with a non-empty array?** - ☐ The code will run, but then will either crash or go into infinite recursion. - ☐ None of these is correct. - ☐ There is a compiler (syntax) error. - ☐ The code will run, but there is a logical error. - ☐ The code is correct. **Explanation:** The method `countOdds` is intended to count the number of odd integers in an array by invoking the helper method `countOddsHelper`. The method `countOddsHelper` uses recursion to iterate through the array, checking each element to see if it is odd and attempting to increment the `count` variable if the condition is met. **Logical Flaw:** - The `countOddsHelper` method lacks accumulation of the count from recursive calls. The `count` variable is reset to zero with each call, so it doesn't properly accumulate the number of odd numbers. **Correct Answer:** - The code will run, but there is a logical error.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
Computer Networking: A Top-Down Approach (7th Edi…
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Concepts of Database Management
Concepts of Database Management
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning
Prelude to Programming
Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education
Sc Business Data Communications and Networking, T…
Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY