NestedList
T[][]@paramvalue
Tdeafult item value
@paramj
numbercolumn length
@parami
numberrow length
@returns
a new nested array ,of size[i,j] , array[i][j] = value
T[][]Tdeafult item value
numbercolumn length
numberrow length
a new nested array ,of size[i,j] , array[i][j] = value