{"id":146699,"date":"2025-08-27T11:37:17","date_gmt":"2025-08-27T06:07:17","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=146699"},"modified":"2025-08-27T11:37:17","modified_gmt":"2025-08-27T06:07:17","slug":"templates-in-cpp-part-1","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/templates-in-cpp-part-1\/","title":{"rendered":"Templates in C++ Part – 1"},"content":{"rendered":"

Program 1<\/h3>\n
\/\/ template in C++\r\n#include<iostream>\r\nusing namespace std;\r\ntemplate<class T>\r\nclass Test\r\n{\r\n    T n;   \/\/string n\r\n   public:\r\n   Test(T m)  \/\/string m\r\n   {\r\n      n=m;\r\n   }\r\n   void show()\r\n   {\r\n      cout<<\"Value is: \"<<n<<endl;\r\n   }\r\n};\r\nint main()\r\n{\r\n    system(\"cls\");\r\n    Test<int> T1(500);\r\n    Test<string>T2(\"DataFlair\");\r\n    Test<double>T3(90.123);\r\n    Test<char>T4('Z');\r\n    T1.show();\r\n    T2.show();\r\n    T3.show();\r\n    T4.show();\r\n     \r\n    return 0;\r\n}\r\n<\/pre>\n
Program 2<\/h3>\n
\/\/ template in C++\r\n#include<iostream>\r\nusing namespace std;\r\ntemplate<class T,class V>\r\nclass Test\r\n{\r\n    T x;  \r\n    V y;  \r\n\r\n    public:\r\n      Test(T a, V b)\r\n      {\r\n          x=a;\r\n          y=b;\r\n      }\r\n      void show()\r\n      {\r\n          cout<<\" First value: \"<<x<<endl;\r\n          cout<<\" Second value: \"<<y<<endl;\r\n      }\r\n};\r\nint main()\r\n{\r\n    system(\"cls\");\r\n    Test<int,double>T1(123,56.77);\r\n    Test<string,int> T2(\"Vivek\",127);\r\n     Test<float,string> T3(123.55,\"Dataflair\");\r\n     T1.show();\r\n     T2.show();\r\n     T3.show();\r\n    return 0;\r\n}<\/pre>\n
Program 3<\/h3>\n
\/\/ function template in C++\r\n#include<iostream>\r\nusing namespace std;\r\ntemplate<typename T>\r\nvoid display( T m)  \/\/int , string , double\r\n{\r\n   cout<<\"value is: \"<<m<<endl;\r\n}\r\nint main()\r\n{\r\n    system(\"cls\"); \r\n     display(100);  \/\/int\r\n     display(\"Hello\");  \/\/string\r\n     display(123.56); \/\/double\r\n    return 0;\r\n}<\/pre>\n
Program 4<\/h3>\n
\/\/ function template in C++\r\n#include<iostream>\r\nusing namespace std;\r\ntemplate<typename T>\r\nvoid swapvalue(T &a,T &b)\r\n{\r\n          T c;\r\n         c=a;\r\n         a=b;\r\n         b=c;\r\n       \r\n}\r\nint main()\r\n{\r\n      system(\"cls\");\r\n     int x=500,y=200;\r\n     cout<<\"\\nBefore swaping: \"<<x <<\"  \"<<y<<endl;\r\n     swapvalue(x,y);\r\n     cout<<\"After swaping: \"<<x <<\"  \"<<y;\r\ncout<<\"\\n---------------------------------------------------------\"<<endl;\r\n      double a=50.34,b=20.66;\r\n     cout<<\"\\nBefore swaping: \"<<a <<\"  \"<<b<<endl;\r\n     swapvalue(a,b);\r\n     cout<<\"After swaping: \"<<a <<\"  \"<<b;\r\n cout<<\"\\n---------------------------------------------------------\"<<endl;\r\n\r\n     string m=\"Hello\",n=\"Friends\";\r\n     cout<<\"\\nBefore swaping: \"<<m <<\"  \"<<n<<endl;\r\n     swapvalue(m,n);\r\n     cout<<\"After swaping: \"<<m <<\"  \"<<n;\r\n     return 0;\r\n}<\/pre>\n","protected":false},"excerpt":{"rendered":"
Program 1 \/\/ template in C++ #include<iostream> using namespace std; template<class T> class Test { T n; \/\/string n public: Test(T m) \/\/string m { n=m; } void show() { cout<<“Value is: “<<n<<endl; }...<\/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":[28585,2263,29219,29218,31826,31824,31827,31825],"class_list":["post-146699","post","type-post","status-publish","format-standard","hentry","category-cpp","tag-c-tutorial","tag-c","tag-c-practical","tag-c-program","tag-c-program-on-templates","tag-c-templates","tag-templates","tag-templates-in-c"],"yoast_head":"\nTemplates in C++ Part - 1 - 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\/templates-in-cpp-part-1\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Templates in C++ Part - 1 - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 \/\/ template in C++ #include<iostream> using namespace std; 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