Merge pull request #27 from publicarray/master

added c++ files

Author: buckyroberts

C++/31_cppBeginners.cpp

@@ -0,0 +1,15 @@
+#include <iostream>
+using namespace std;
+
+int factorialFinder(int x){ // recursive function
+    if(x==1){  // base case - end the function when x = 1
+        return 1;
+    }else{
+        return x*factorialFinder(x-1);
+    }
+}
+
+int main()
+{
+    cout << factorialFinder(5) << endl;
+}

C++/32_cppBeginners.cpp

@@ -0,0 +1,9 @@
+#include <iostream>
+using namespace std;
+
+int main()
+{
+    int bucky[5] = {66,75,2,43,99}; // array initialiser list
+
+    cout << bucky[2] << endl; // the array index starts at 0 so bucky[0] = 66, bucky[1] = 75, and bucky[1] = 2 ...
+}

C++/33_cppBeginners.cpp

@@ -0,0 +1,13 @@
+#include <iostream>
+using namespace std;
+
+int main()
+{
+    int bucky[9];
+
+    cout << "Element  -  Value" << endl;
+    for (int x= 0; x<=8; x++){
+        bucky[x] = 99;
+        cout << x << "   -----   " << bucky[x] << endl;
+    }
+}

C++/34_cppBeginners.cpp

@@ -0,0 +1,13 @@
+#include <iostream>
+using namespace std;
+
+int main()
+{
+    int tuna[5] = {20,54,76,832,546};
+    int sum = 0;
+
+    for(int x = 0; x < 5; x++){
+        sum += tuna[x];
+        cout << sum << endl;
+    }
+}

C++/35_cppBeginners.cpp

@@ -0,0 +1,19 @@
+#include <iostream>
+using namespace std;
+
+void printArray(int theArray[], int sizeOfArray); // prototype
+
+int main(){
+    int bucky[3] = {20,54,675};
+    int jessica[6] = {54,24,7,8,9,99};
+
+    printArray(bucky, 3);
+    printArray(jessica, 6);
+}
+
+void printArray(int theArray[], int sizeOfArray){
+
+    for(int x = 0;x<sizeOfArray; x++){
+        cout << theArray[x] << endl;
+    }
+}

C++/36_cppBeginners.cpp

@@ -0,0 +1,15 @@
+#include <iostream>
+using namespace std;
+
+int main(){
+
+    // [rows][columns]
+    int sally[2][3] = {{2,3,4},{8,9,10}};
+
+    // index 0  1  2
+    //      _________
+    //    0 |2, 3, 4
+    //    1 |8, 9, 10
+
+    cout << sally [1][1];
+}

C++/37_cppBeginners.cpp

@@ -0,0 +1,14 @@
+#include <iostream>
+using namespace std;
+
+int main(){
+
+    int bertha[2][3] = {{1,2,3},{7,8,9}};
+
+    for(int row=0; row<2; row++){
+        for(int column=0; column<3;column++){
+            cout << bertha[row][column] << " ";
+        }
+        cout << endl;
+    }
+}

C++/38_cppBeginners.cpp

@@ -0,0 +1,12 @@
+#include <iostream>
+using namespace std;
+
+int main(){
+    int fish = 5;
+    cout << &fish << endl; // address operator (&)
+
+    int *fishPointer; // a pointer
+     fishPointer = &fish;
+
+     cout << fishPointer << endl;
+}

C++/39_cppBeginners.cpp

@@ -0,0 +1,24 @@
+#include <iostream>
+using namespace std;
+
+void passByValue (int x);
+void passByReference(int *x);
+
+int main(){
+    int betty = 13;
+    int sandy = 13;
+
+    passByValue(betty);
+    passByReference(&sandy);
+
+    cout << "betty is now " << betty << endl;
+    cout << "sandy is now " << sandy << endl;
+}
+
+void passByValue (int x){
+    x = 99;
+}
+
+void passByReference(int *x){
+    *x=66;
+}

C++/40_cppBeginners.cpp

@@ -0,0 +1,19 @@
+#include <iostream>
+using namespace std;
+
+int main(){
+
+    char a;
+    cout << "size of char: " << sizeof(a) << endl;
+
+    int b;
+    cout << "size of int: " << sizeof(b) << endl;
+
+    double c;
+    cout << "size of double: "  << sizeof(c) << endl;
+
+    double bucky[10];
+    cout << "size of bucky[]: " << sizeof(bucky) << endl;
+    cout << "no. of elements in bucky[]: " << sizeof(bucky) / sizeof(bucky[0]) << endl;
+
+}