Notes4 Programme

          Hierarchy operation    if we use two or more operator in arithmetic instruction than we use hierarchy operator problem . the priority or precedence in which the arithmetic operator are perform called hierarchy operations. example:- 2*x-3*y , a/(b*c). Associativity operators: -  when an expression take two or more operator of same priority. Than the tie between them and we use associativity of the operator.        associativity are to type:-        1. left to right :-  it means that the left operand must be unambiguous (non- confusing) . 2. right to left :- it mean the right  operand must be unambiguous (non- confusing). example:- a=3/2*5;