High School

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Consider the following code segment:

```java
int[] arr = {5, 3, 9, 7, 1};
for (int j : arr) {
j = j + 15;
System.out.print(j + " ");
}
for (int j : arr) {
System.out.print(j + " ");
}
```

What is printed as a result of executing the code segment?

A. 0 1 2 3 4 0 1 2 3 4

B. 5 3 9 7 1 5 3 9 7 1

C. 15 16 17 18 19 0 1 2 3 4

D. 20 18 24 22 16 5 3 9 7 1

E. 15 16 17 18 19 15 16 17 18 19

Answer :

Final answer:

The provided Java code will output '20 18 24 22 16 5 3 9 7 1' when executed, as the first for-each loop modifies a copy of the array element and does not change the original array. Option D is the answer.

Explanation:

The code segment provided is a Java program that initializes an array with the values {5, 3, 9, 7, 1}. It then uses a for-each loop to iterate through the array. However, because the loop variable 'j' is a copy of each array element, changes made to 'j' don't affect the original array. Therefore, the first loop will print out each value of the array plus 15, resulting in 20 18 24 22 16. Then, the second for-each loop prints the original, unchanged array values: 5 3 9 7 1. Thus, the output will be 20 18 24 22 16 5 3 9 7 1.

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