How to initialise an array in a loop in java?

I am taking the size of an array in a variable in a loop. Each time I have to assign the size of the array equal to that variable and then take integers equal to that size. For example:

for(i = 0; i < N; i++)
{
    variable = sc.nextInt();
    int []array = new int[variable];
    for(j = 0; j < variable; j++)
    {
        array[j] = sc.nextInt();
    }
}

Please provide me the most efficient method as I am new to java :)