Jagged array is a multi dimensional array, which number of columns maybe different in each row. In Java you can initialize jagged arrays rows and columns with specialized syntax which is not available in C#:

int[][] arr = new int[][]{{1, 2}, {3, 4, 5}};

We translate item initializers to separated new statements:

int[][] arr = new int[][];
arr[0] = new int[] {1, 2};
arr[1] = new int[] {3, 4, 5};