commutative program

Sequence is a series of statements and execution sequence yangg sequence, so it is earlier in the reading will be done first. if the order of the statement will have the meanings behind different yangg

commutative operators such as addition and multiplication, the order of the process can be done anywhere, while non-commutative operator with properties such as subtraction, division, integer division, and the rest of the division of the process sequence must be noticed

examples of commutative program
<br /> #include <iostream><br /> #include <stdlib.h><br /> <br /> using namespace std;<br /> class perkalian{<br /> friend ostream& operator<<(ostream&, const perkalian&); friend istream& operator>>(istream&, perkalian&);<br /> public:<br /> perkalian();<br /> void hitung_perkalian(){hasil=(a*b);}<br /> private:<br /> int a,b;<br /> int hasil;<br /> };<br /> <br /> perkalian::perkalian(){}<br /> <br /> istream& operator>>(istream& in, perkalian& masukan){<br /> cout<<"masukan nilai a : "; in>>masukan.a;<br /> cout<<"masukan nilai a : "; in>>masukan.b;<br /> return in;<br /> }<br /> <br /> ostream& operator<<(ostream& out, const perkalian& keluaran){ out<<"jadi "<<keluaran.a<<" dikali "<<keluaran.b<<endl; out<<"adalah "<<keluaran.hasil<<endl; return out; } int main(int argc, char *argv[]) { perkalian X; cin>>X;<br /> X.hitung_perkalian();<br /> cout<<X; system("PAUSE"); return 0; }

final result in dev :