Multidimensional Arrays lengths in Java -

i need find lengths of multidimensional array non equal indices.

for example, have int[][] pathlist = new int[6][4]

without hard-coding indices, need find '6' , '4'.

i can find 6 pathlist.length how obtain '4'?

this give length of array @ index i

pathlist[i].length 

it's important note unlike c or c++, length of elements of two-dimensional array in java need not equal. example, when pathlist instantiated equal new int[6][], can hold 6 int [] instances, each of can different length.

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so when create arrays way you've shown in question, may do

 pathlist[0].length 

since know have same length. in other cases, need define, specific application what length of second dimension means - might maximum of lengths elements, or perhaps minimum. in cases, you'll need iterate on elements , read lengths make decision:

for(int = 0; < pathlist.length; i++) {     int currlen = pathlist[i].length; }