add Surfaces Area Menu with cpp

C++/Area_Menu.cpp

@@ -0,0 +1,110 @@
+#include <iostream>
+#include <conio.h>
+using namespace std;
+
+char pilih, ulang;
+float masukkan[3];
+
+float luasSegitiga(float alas, float tinggi)
+{
+    return (0.5 * alas * tinggi);
+}
+float luasLingkaran(float r)
+{
+    return (3.14 * (r * r));
+}
+float luasPersegiPanjang(int panjang, int lebar)
+{
+    return (panjang * lebar);
+}
+
+void segitiga()
+{
+    cout << "=== TRIANGLE AREA MENU ===\n\n";
+    cout << "INPUT HIGH VALUE : ";
+    cin >> masukkan[0];
+    cout << "ENTER BASE VALUE : ";
+    cin >> masukkan[2];
+    masukkan[1] = luasSegitiga(masukkan[0], masukkan[2]);
+    cout << "\nAREA OF TRIANGLE : " << masukkan[1];
+}
+
+void lingkaran()
+{
+    cout << "=== CIRCLE AREA MENU ===\n\n";
+    cout << "INPUT FINGER VALUE : ";
+    cin >> masukkan[0];
+    masukkan[1] = luasLingkaran(masukkan[0]);
+    cout << "\nAREA OF CIRCLE : " << masukkan[1];
+}
+
+void persegipanjang()
+{
+    cout << "== RECTANGLE AREA MENU ==\n\n";
+    cout << "INPUT LONG VALUE : ";
+    cin >> masukkan[0];
+    cin.ignore();
+    cout << "INPUT WIDE VALUE : ";
+    cin >> masukkan[2];
+    cin.ignore();
+    masukkan[1] = luasPersegiPanjang(masukkan[0], masukkan[2]);
+    cout << "\nAREA OF RECTANGLE : " << masukkan[1];
+}
+
+void keluar()
+{
+    cout << "\n";
+    cout << "=== EXIT FROM MENU ===\n";
+    cout << "\n";
+    cout << "Enter Something\n";
+    getchar();
+}
+
+int main()
+{
+menu:
+    cout << "============================\n";
+    cout << "==== BUILDING AREA MENU ====\n\n";
+    cout << "1.TRIANGLE AREA MENU\n";
+    cout << "2.CIRCLE AREA MENU\n";
+    cout << "3.RECTANGLE AREA MENU\n";
+    cout << "4.EXIT\n";
+    cout << "CHOICE (1,2,3,4) : ";
+    cin >> pilih;
+    cin.ignore();
+    cout << "==========================\n";
+
+    switch (pilih)
+    {
+    case '1':
+        segitiga();
+        getch();
+        break;
+
+    case '2':
+        lingkaran();
+        getch();
+        break;
+
+    case '3':
+        persegipanjang();
+        getch();
+        break;
+
+    case '4':
+    exit:
+        keluar();
+        return 0;
+
+    default:
+        cout << "YOUR CHOICE IS NOT IN THE SYSTEM\n";
+    }
+    cout << "\n\nBACK TO MAIN MENU? (y/n) : ";
+    cin >> ulang;
+    cin.ignore();
+    if (ulang == 'y' || ulang == 'Y')
+        goto menu;
+    else if (ulang == 'n' || ulang == 'N')
+        goto exit;
+    getch();
+}