Array question

[Kevin S]

Hello all, some questions about the array here. What's the purpose of make the mode array = 0? then mode[0][0] = 1? Thanks for your time.

for (i = 0; i < 2; i++)
		for (j = 0; j < 10; j++)
			mode[j][i] = 0;
	mode[0][0] = 1;

[integralfx]

for (i = 0; i < 2; i++)
		for (j = 0; j < 10; j++)
			mode[j][i] = 0;

This will set every element in mode to 0.
You could also do this:

const int ROWS = 2, COLUMNS = 10;
int mode[ROWS][COLUMNS] = { 0 };

mode[0][0] = 1;
This will set the element in the first row and first column to 1.

[Kevin S]

Thank you Integralfx, do we have to set array to zero every time before we use them?