{"id":145032,"date":"2025-05-09T15:03:14","date_gmt":"2025-05-09T09:33:14","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=145032"},"modified":"2025-05-09T15:03:14","modified_gmt":"2025-05-09T09:33:14","slug":"cpp-program-to-make-a-simple-calculator","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/cpp-program-to-make-a-simple-calculator\/","title":{"rendered":"C++ Project &#8211; Simple Calculator"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/Simple Calculator Project using menu\r\n#include&lt;iostream&gt;\r\n#define clrscr() system(\"cls\")\r\nusing namespace std;\r\nclass Calculator\r\n{\r\n    public:\r\n    int add(double a,double b)\r\n    {\r\n        return(a+b);\r\n    }\r\n    int sub(double a,double b)\r\n    {\r\n        return(a-b);\r\n    }\r\n    int multiply(double a,double b)\r\n    {\r\n        return(a*b);\r\n    }\r\n    int division(double a,double b)\r\n    {\r\n        return(a\/b);\r\n    }\r\n   \r\n};\r\nint main()\r\n{\r\n    clrscr();\r\n    int choice;\r\n    Calculator C;\r\n    double num1,num2;\r\n    cout&lt;&lt;\"Enter First Number: \";\r\n    cin&gt;&gt;num1;\r\n    cout&lt;&lt;\"Enter First Number: \";\r\n    cin&gt;&gt;num2;\r\n\r\n    cout&lt;&lt;\"\\n------------Simple Calculator----------------\";\r\n    cout&lt;&lt;\"\\n 1.Add \\n 2.Subtract \\n 3.Multiply \\n 4.Division\";\r\n    cout&lt;&lt;\"\\n-----------------------------------------------\";\r\n    cout&lt;&lt;\"\\n Enter your choice\";\r\n    cin&gt;&gt;choice;\r\n    switch(choice)\r\n    {\r\n        case 1: cout&lt;&lt;C.add(num1,num2);break;\r\n        case 2: cout&lt;&lt;C.sub(num1,num2);break;\r\n        case 3: cout&lt;&lt;C.multiply(num1,num2);break;\r\n        case 4: cout&lt;&lt;C.division(num1,num2);break;\r\n        default:cout&lt;&lt;\"Invalid choice\";\r\n    }\r\n    return 0;\r\n\r\n}<\/pre>\n<h3>Program 2<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/Simple Calculator Project using operator\r\n#include&lt;iostream&gt;\r\n#define clrscr() system(\"cls\")\r\nusing namespace std;\r\nclass Calculator\r\n{\r\n    public:\r\n    int add(double a,double b)\r\n    {\r\n        return(a+b);\r\n    }\r\n    int sub(double a,double b)\r\n    {\r\n        return(a-b);\r\n    }\r\n    int multiply(double a,double b)\r\n    {\r\n        return(a*b);\r\n    }\r\n    int division(double a,double b)\r\n    {\r\n        return(a\/b);\r\n    }\r\n};\r\nint main()\r\n{\r\n    clrscr();\r\n    double num1,num2;\r\n    char oprt;\r\n    cout&lt;&lt;\"\\nEnter First Number: \";\r\n    cin&gt;&gt;num1;\r\n    cout&lt;&lt;\"\\n Enter operator(+ , - , * , \/ ): \";\r\n    cin&gt;&gt;oprt;\r\n    cout&lt;&lt;\"\\nEnter First Number: \";\r\n    cin&gt;&gt;num2;\r\n    Calculator C;\r\n    switch(oprt)\r\n    {\r\n       case '+':cout&lt;&lt;C.add(num1,num2);break;\r\n       case '-':cout&lt;&lt;C.sub(num1,num2);break;\r\n       case '*':cout&lt;&lt;C.multiply(num1,num2);break;\r\n       case '\/':cout&lt;&lt;C.division(num1,num2);break;\r\n       default:cout&lt;&lt;\"\\n Invalid operator: \"&lt;&lt;oprt;\r\n    }\r\n    return 0;\r\n}<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 \/\/Simple Calculator Project using menu #include&lt;iostream&gt; #define clrscr() system(&#8220;cls&#8221;) using namespace std; class Calculator { public: int add(double a,double b) { return(a+b); } int sub(double a,double b) { return(a-b); } int multiply(double&#46;&#46;&#46;<\/p>\n","protected":false},"author":581,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20172],"tags":[28585,2263,29219,29218,34164,34163,34098,34167,34166,34165],"class_list":["post-145032","post","type-post","status-publish","format-standard","hentry","category-cpp","tag-c-tutorial","tag-c","tag-c-practical","tag-c-program","tag-c-program-to-make-a-simple-calculator","tag-c-simple-calculator-project","tag-simple-calculator","tag-simple-calculator-in-c","tag-simple-calculator-project","tag-simple-calculator-using-c"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>C++ Project - Simple Calculator - DataFlair<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/data-flair.training\/blogs\/cpp-program-to-make-a-simple-calculator\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C++ Project - Simple Calculator - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 \/\/Simple Calculator Project using menu #include&lt;iostream&gt; #define clrscr() system(&quot;cls&quot;) using namespace std; class Calculator { public: int add(double a,double b) { return(a+b); } int sub(double a,double b) { return(a-b); } int multiply(double&#046;&#046;&#046;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/data-flair.training\/blogs\/cpp-program-to-make-a-simple-calculator\/\" \/>\n<meta property=\"og:site_name\" content=\"DataFlair\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DataFlairWS\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-05-09T09:33:14+00:00\" \/>\n<meta name=\"author\" content=\"DataFlair Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:site\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"DataFlair Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"C++ Project - Simple Calculator - DataFlair","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/data-flair.training\/blogs\/cpp-program-to-make-a-simple-calculator\/","og_locale":"en_US","og_type":"article","og_title":"C++ Project - Simple Calculator - DataFlair","og_description":"Program 1 \/\/Simple Calculator Project using menu #include&lt;iostream&gt; 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