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6 October, 05:37

The elements of an integer-valued array can be set to 0 (i. e., the array can be cleared) recursively as follows: An array of size 0 is already cleared; Otherwise, set the last of the uncleared elements of the array to 0, and clear the rest of the array Write a void method named clear that accepts an integer array, and the number of elements in the array and sets the elements of the array to 0.

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  1. 6 October, 06:28
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    The method definition to this question can be given as:

    Method definition:

    public void clear (int[] arr, int num) / /define method clear.

    {

    if (num = = 0) / /if block

    {

    return 0; return value.

    }

    else / /else block

    {

    arr[num - 1] = 0; / /assign value in arr.

    return arr[]; / /return value.

    }

    }

    clear (arr, num - 1); / /calling

    Explanation:

    The description of the above method definition as follows:

    Firstly we define a method that is "clear" that does not return any value because its return type is "void". This method accepts two integer variables that are "arr[] and num" where arr[] is an array variable and num is an integer variable. Inside a method, we use a conditional statement in if block we check that num variable value is equal to 0. if this condition is true so, it will return 0 otherwise it will go to else block in else block it will assign value in variable arr[num-1] that is "0" and return arr value.
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