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6.9.1: Modify an array parameter. Write a function SwapArrayEnds() that swaps the first and last elements of the function's array parameter. Ex: sortArray = {10, 20, 30, 40} becomes {40, 20, 30, 10}.

Respuesta :

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Answer:

public static void SwapArrayEnds(int[] arr) {

    int temp = arr[0];

    arr[0] = arr[arr.length-1];

    arr[arr.length-1] = temp;

}

Explanation:

- Create a function called SwapArrayEnds that takes one parameter, an integer array

- Inside the function, declare a temporary variable and set it to the first element of the array

- Assign the value of the last element of the array to the first element, the first element in the array is swapped

- Assign the value of the temporary variable to the last element, the last element in the array is swapped

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Answer:

public static void swapArrayEnds(int[] newArray){

int num = newArray[0] ;

newArray[0] = newArray[newArray.length-1];

newArray[newArray.length-1] = num;

}

Explanation:

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