Implementation of the iOS calculator

Simple implementation of the main.m//calcultor/* Calculator 1. Addition 2. Subtraction 3. Multiplication 4. Except method to achieve two number of operations */#import <Foundation/Foundation.h> #import "Calcultor.h" #import "Menu.h" int main (int argc, con        St char * argv[]) {Calcultor * cal = [[Calcultor alloc]init];        [Cal Setnumber1:10];        [Cal Setnumber2:10];        [Cal Setresult:0];    [Cal Setcalcultoroperator: ' + '];    [Cal initwithnumber1:10 andinitwithnumber2:10 andinitwithcalcultoroperator: ' + '];    [Cal counter];    NSLog (@ "%@", Cal);    Double number1; Double number2;    Double result;    char operator;    NSLog (@ "Please enter a formula such as a+b:\n");    scanf ("%lf", &number1);    scanf ("%c", &operator);    scanf ("%lf", &number2);    [Cal Setnumber1:number1];  [Cal Setnumber2:number2]; [Cal Setcalcultoroperator:operator];        [Cal Counter:operator];        NSLog (@ "You calculated the result is =%.lf", [Cal Counter:operator]); Menu * menu = [[Menu Alloc]init];///[menu ShowMenu]; return 0;}

#import <Foundation/Foundation.h> #import "Calcultor.h" @interface menu:nsobject{    calcultor *  _cal;} /** Display menu options */-(void) ShowMenu: (Calcultor *) cal; @end

#import "Menu.h" @implementation menu/** display menu options */-(void) ShowMenu: (Calcultor *) Cal; {    //    NSLog (@ "menu");//    NSLog (@ "1. Calculation +-*/");//    NSLog (@ "2. Calculate the square of a number");//    NSLog (@ "Please enter your options:");//    int selectnumber;//    scanf ("%d", &selectnumber);//    switch () {//Case://            break;//            / /        default://            break;//    }} @end

#import <Foundation/Foundation.h> @interface calcultor:nsobject{    @public    /** used to record the operand 1*/    double _ Number1;        /** used to record operands 2*/    double _number2;        /** used to record results */        double _result;        /** used to record operators */    char   _calcultoroperator;} @property declaration @property double number1; @property double number2; @property double result; @property Char calcultoroperator;/** addition */-(double) add;/** subtraction */-(double) subtract;/** multiplication */-(double) multiply;/** Division */-(double) divide ;-(double) simple implementation of the square;/** Calculator */-(double) counter: (char) calcultor;//-(void) InitWithNumber1: (double) number1 AndInitWithNumber2: (Double) number2 andinitwithcalcultoroperator: (char) calcultor; @end

#import "Calcultor.h" @implementation calcultor-(ID) init{if (self = [super init]) {_result = 0.0; } return self;}    /** addition */-(double) add{return (_number1 + _number2); NSLog (@ "%.1lf", _result);}    /** subtraction */-(double) subtract{return _number1-_number2; NSLog (@ "%.1lf", _result);}    /** multiplication */-(double) multiply{return _number1 * _NUMBER2; NSLog (@ "%.1lf", _result);}    /** Division */-(double) divide{return _number1/_number2; NSLog (@ "%.1lf", _result);} -(double) square{return _number1 * _NUMBER1;} Simple implementation of the/** Calculator */-(double) counter: (char) calcultor{//char calcultor;//local variable switch (calcultor) {case                ' + ': _result = [self add];            Break                Case '-': _result = [self subtract];            Break                Case ' * ': _result = [self multiply];            Break                Case '/': _result = [self divide];            Break               DefaultBreak } return _result;} -(void) InitWithNumber1: (double) number1 andInitWithNumber2: (double) number2 andinitwithcalcultoroperator: (char) calcultor//{//_number1 = number1;//_number2 = number2;//_calcultoroperator = calcultor;//}/**!!! Debugging with!!! */-(NSString *) description{return [NSString stringwithformat:@ "operand 1:%.1lf operand 2:%.1lf result:%.1LF operator:%c", _number1,_nu Mber2,_result,_calcultoroperator];} @end

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Implementation of the iOS calculator