Question

If I have this array of integers :

int[] columns_index = { 2, 3, 4};

How can i repeat this sequence according to given number (size)?

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For example :

if i give u 4 as a size then the array will be

{2,3,4,2}

if i give u 5 as a size then the array will be

{2,3,4,2,3}

if i give u 6 as a size then the array will be

{2,3,4,2,3,4}

if i give u 7 as a size then the array will be

{2,3,4,2,3,4,2}

And so on …

Answer 1

Just use the modulo operator to iterate through the columns_index

int input = 7; // change this to user input of whatever it needs to be
int[] numbers = new int[ input ];

for ( int i = 0; i < input; i++ ){
    int index = i % ( columns_index.length )
    numbers[i] = columns_index[ index ];
}