Resizing a 2d array in java -

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i have been doing questions in programming book , came across question:

what output of following code?

int[][] array = new int[5][6]; int[] x = {1, 2}; array[0] = x; system.out.println("array[0][1] " + array[0][1]);

the book says answer is:

array[0][1] 2

i learned far resizing array isn't possible. understand of problem that

int[][] array = new int[5][6]

is creating 5 arrays of 6 elements display 0's default if displayed on console

000000 000000 000000 000000 000000

and understand 

array[0] = x;

is resizing first array has 6 elements of 0 array 2 elements: 1 , 2.

what not understanding? 

array[0] = x;

is making it's changing index 0 element , index 1 element of first array? , keeping index 2,3,4,5 elements 0's in array[0]?

i found question resize array while keeping current elements in java? don't think helps me answer question.

this line

array[0] = x;

is not resizing array array[0]; it's replacing array array[0] such array now

12 000000 000000 000000 000000

the old array[0] discarded , garbage collected. array[0] , x refer same array object, {1, 2}.


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