Jagged Java arrays of int -

i understand x jagged array in

int x[][] = {{0,1,2,3,4},{0,1,2},{0,1,2,3}}; 

but given array a like

int a[] = {10,3,47,4,8}; 

is a jagged array?

the overall cs answer

the term "jagged" (i've seen "ragged") array refers a multi-dimension array (>1) each element array. thus

int[] = {1,2,3}; 

is not jagged array,

int[][] = {{1,2,3,4}, {5,6,7}}; 

is. however, counterintuitively,

int[][] = {{1,2,3,4}, {5,6,7,8}}; 

is jagged array, though "looks even" if draw out:

int[][] = {     {1,2,3,4},     {5,6,7,8} }; 

this because other coding languages (such c#) distinguish between multi-dimensional arrays , jagged arrays. in languages, "jagged" not description of current structure of array in question, type of object entirely. see difference between 2 here

the java answer

unlike other languages, java allows single arrays of given type. type int[][] "an array of int[]". java doesn't support true multi-dimensional arrays, has jagged arrays

because of this, term "jagged" array takes on different meaning in conventional java-speak. arrays of dimension > 1 jagged, term "jagged" comes mean array of dimension > 1 sub arrays of differing length.thus following array "jagged" because first , second sub-arrays of unequal length:

int[][] = {{1,2,3,4}, {5,6,7}} 

as equivalent to:

{     {1, 2, 3, 4}, //length 4     {5, 6, 7} //length 3 } 

this array considered jagged:

{     {1, 2, 3, 4}, //length 4     {11, 12, 13, 14}, //length 4     {21, 22, 23, 24}, //length 4     {31, 32, 33, 34}, //length 4     {5, 6, 7} //length 3 } 

even though following jagged array in technical sense, not conventionally referred such:

int[][] = {     {1,2,3,4},     {5,6,7,8} } 

similarly, because "jagged"ness requires 2 sub-arrays of unequal length, 1-d array can't jagged has no sub-arrays compare.