While Enqueing & displaying data using Stack, how (ai) available index variable line is working or getting data

#1

int ai = (this.front + this.size()) % this.data.length;

#2

front represents the starting index of the elements that are filled in the array and size represents the no. of elements in the array at that particular instant of time, so to calculate the next available index you do just start + size

#3

but front is returning always 0

#4

no front stores the index of the next element to be dequeued

#5

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