catching up on entries

array1.cpp

@@ -0,0 +1,15 @@
+#include <iostream>
+using namespace std;
+
+int main(){
+  int intArray[10];
+
+  for(int i = 0; i < 10; i++){
+    intArray[i] = i*i;
+  }
+  for(int i = 0; i < 10; i++){
+    cout << "The " << i << "th thing is: " << intArray[i] << endl; 
+  }
+  
+  return 0;
+}

badarray.cpp

@@ -0,0 +1,18 @@
+#include <iostream>
+using namespace std;
+
+int main(){
+  int myArray[10];
+  for(int i = 0; i < 10; i++){
+    myArray[i] = i*i + 1;
+  }
+  cout << myArray[0] << endl;
+  cout << myArray[1] << endl;
+  //...
+
+  myArray[200] = 12345;
+  cout << myArray[200] << endl;
+
+  cout << "What is the value of the array variable: " << myArray << endl;
+  return 0;
+}

cinfail.cpp

@@ -0,0 +1,21 @@
+#include <iostream>
+using namespace std;
+
+int main(){
+
+  int num1;
+  int num2;
+  string rest;
+
+  cout << "Enter two numbers, separated by a space: ";
+  cin >> num1;
+  cin >> num2;
+  if(cin.fail()){
+    cout << "oh, it failed" << endl;
+    cin.clear();
+    cin >> rest;
+    cout << "The rest was: " << rest << endl;
+  }
+  
+  return 0;
+}

cinfail2.cpp

@@ -0,0 +1,18 @@
+#include <iostream>
+using namespace std;
+
+int main(){
+  int num;
+  cout << "Enter a whole number: ";
+  cin >> num;
+  while(cin.fail() || cin.peek() == '.'){
+    cout << "Whoops. Enter a whole number: ";
+    cin.clear();
+    cin.ignore(256,'\n');
+    //cout << "Next char is: " << cin.peek() << endl;
+    cin >> num;
+  }
+  cout << "You entered: " << num << endl;
+  
+  return 0;
+}

cinfail3.cpp

@@ -0,0 +1,39 @@
+#include <iostream>
+using namespace std;
+
+int parseInt(){
+  int num;
+  cout << "Enter a whole number: ";
+  cin >> num;
+  while(cin.fail() || cin.peek() == '.'){
+    cout << "Whoops. Enter a whole number: ";
+    cin.clear();
+    cin.ignore(256,'\n');
+    //cout << "Next char is: " << cin.peek() << endl;
+    cin >> num;
+  }
+  return num;
+}
+
+double parseDouble(){
+  double num;
+  cout << "Enter a number: ";
+  cin >> num;
+  while(cin.fail()){
+    cout << "Whoops. Enter a number: ";
+    cin.clear();
+    cin.ignore(256,'\n');
+    //cout << "Next char is: " << cin.peek() << endl;
+    cin >> num;
+  }
+  return num;
+}
+
+int main(){
+  int num = parseInt();
+  cout << "You entered: " << num << endl;
+  double dubstep = parseDouble();
+  cout << "Here's your double: " << dubstep << endl;
+  
+  return 0;
+}

whileCin1.cpp

@@ -0,0 +1,13 @@
+#include <iostream>
+using namespace std;
+
+int main(){
+  string input = "";
+  while(input != "chicken"){
+    cout << "Say the magic word: ";
+    cin >> input;
+  }
+  cout << "You said it!" << endl;
+  
+  return 0;
+}

whileCin2.cpp

@@ -0,0 +1,37 @@
+#include <iostream>
+using namespace std;
+
+int main(){
+  string input="";
+  bool yOrN;
+
+  // && "and", returns true if left and right are true
+  // || "or", returns true if left or right are true
+  // ! "not", ! true = false, ! false = true
+  // ! (a || b) <--> !a && !b
+  // Haskell: or $ map (==input) ["Yes,"No","y","n"]
+/*  while(! (input == "Yes" || input == "y" || input == "No" || input == "n")){
+    cout << "Enter an option (Yes/y/No/n): ";
+    cin >> input;
+  }
+*/
+  while(input != "Yes" && input != "y" && input != "No" && input != "n"){
+    cout << "Enter an option (Yes/y/No/n): ";
+    cin >> input;
+  }
+
+  /*
+  if(input == "Yes" || input == "y"){
+   yOrN = true;   
+  }
+  else{
+    yOrN = false;
+  }
+*/
+  yOrN = (input == "Yes" || input == "y");
+  // will print 1 if yOrN = true
+  // will print 0 if yOrN = false
+  cout << "Testing our boolean: " << yOrN << endl;
+  
+  return 0;
+}

whileCin3.cpp

@@ -0,0 +1,20 @@
+#include <iostream>
+using namespace std;
+
+int main(){
+
+  int ourNum;
+  int ourNum2;
+  string ourString;
+
+  cout << "Enter numbers: ";
+  cin >> ourNum;
+  cin >> ourNum2;
+  // cin >> ourString;
+  
+  cout << "You wrote: " << ourNum << " " << ourNum2 << endl;
+
+  
+  
+  return 0;
+}