How is this illegal

Question

a) int i[] = new int[2]{1,2};
b) int[] i = new int[]{1,2,3}{4,5,6}; 

I know we cannot give size of an array at declaration . But in statement(a) we

Answer 1

Both are illegal!

a) You either specify the size or the content. Legal would be:

int i[] = new int[2];
i[0] = 1;
i[1] = 2;

or

int i[] = new int[]{1,2};

b) 2-dimensional arrays are arrays containing arrays. So, you have to write:

int[] i = new int[][]{{1,2,3}, {4,5,6}};
                     ^       ^        ^