Big talk design pattern Note one

Convert its Java code into CPP code.

#include <iostream> #include <string>using namespace std;void func1 () {cout << "please input number A:" &  lt;< endl;long numbera;cin >> numbera;cout << "Please input operate (+_*/):" << Endl;char operate;cin >> operate;cout << "Please input number B:" << endl;long numberb;cin >> Numberb;switch (operate) { Case ' + ': cout << "result was:" << Numbera + numberb << endl;break;case '-': cout << "result is:" & lt;< numbera-numberb << endl;break;case ' * ': cout << "result is:" << Numbera * numberb << End L;break;case '/': cout << ' result is: ' << (double) numbera/numberb << Endl;break;}}

　　

#include <iostream> #include <string>using namespace Std;class operation{protected:double numbera;double Numberb;public:double Getnumbera () {return numbera;} Double Getnumberb () {return numberb;} void Setnumbers (double value1, double value2) {Numbera = value1; numberb = value2;} Virtual Double GetResult () {return 0.0;}}; Class Operationadd:public operation{public:double GetResult () {return numbera + Numberb;}}; Class Operationsub:public operation{public:double GetResult () {return numbera-numberb;}}; Class Operationmul:public operation{public:double GetResult () {return numbera * NUMBERB;}}; Class Operationdiv:public operation{public:double GetResult () {return numbera/numberb;}}; Class Operationfactory{public:static operation* createoperate (char operate) {Operation *p = Null;switch (operate) {case '  + ':p = new Operationadd (); Break;case '-':p = new Operationsub (); Break;case ' * ':p = new Operationmul (); Break;case '/':p = new Operationdiv (); break;} return p;}}; void Func2 () {Double A =7.0;double b = 8.0;char op = ' * '; operation* oper = operationfactory::createoperate (OP); Oper->setnumbers (A, b); cout << a << op << b << "equal" <<oper->getresult () << Endl;}

　　

Big talk design pattern Note one