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/************************************************************************************* @File:		main.cpp**** @Title:		CPP-Learning**** @Author:		Jamie Sharpe**** @Date:		18 September 2011**** @Version:	0.01**** @Description:**				This file contains various**				exercises.***********************************************************************************/#include <iostream>#include <fstream>#include <string>using namespace std;//Prototype functions//void ifStatement();void switchStatement();void whileStatement();void forStatement();void doWhileStatement();void fileWrite();void fileRead();void inputError();void mainOptions();int main(){	cout << "Welcome to CPP-Learning!" << endl;	mainOptions();	int userInput = 0;	while( cin >> userInput )	{		switch ( userInput )		{			case 1:				ifStatement();				break;			case 2:				switchStatement();				break;			case 3:				whileStatement();				break;			case 4:				forStatement();				break;			case 5:				doWhileStatement();				break;			case 6:				fileWrite();				break;			case 7:				fileRead();				break;			default:				inputError();				break;		}	}	return 0;}void ifStatement(){	cout << "if statement function selected!" << endl;	int ifTest = 10; //Change this value to generate different results.	cout << "Enter a number and it will be compared to the number 10" << endl;	cin >> ifTest;	if ( ifTest < 10 )	{		cout << ifTest << " is less than 10" << endl;	}	else if ( ifTest == 10 )	{		cout << ifTest << " is the same as 10" << endl;	}	else if ( ifTest > 10 )	{		cout << ifTest << " is more than 10" << endl;	}	else	{		cout << "Something went wrong!" << endl;	}	cout << "end of function" << endl;	mainOptions();}void switchStatement(){	cout << "switch statement function selected!" << endl;	int switchTest = 0;	cout << "Enter a number from 0 to 9" << endl;	cin >> switchTest;	switch ( switchTest )	{		case 0:			cout << "switchTest is 0" << endl;			break;		case 2: //intentional fallthrough		case 4: //intentional fallthrough		case 6: //intentional fallthrough		case 8:			cout << switchTest << " is an even number" << endl;			break;		case 1: //intentional fallthrough		case 3: //intentional fallthrough		case 5: //intentional fallthrough		case 7: //intentional fallthrough		case 9:			cout << switchTest << " is an odd number" << endl;			break;		default:			cout << "Please make sure you entered a number from 0 to 9" << endl;			break;	}	cout << "end of function" << endl;	mainOptions();}void whileStatement(){	cout << "while statement function selected!" << endl;	int whileTest = 0;	while( whileTest <= 100 )	{		cout << whileTest << " out of 100!" << endl;		whileTest++;	}	cout << "end of function" << endl;	mainOptions();}void forStatement(){	cout << "while statement function selected!" << endl;	for ( int i = 0; i <= 100; i++ )	{		cout << i << " out of 100!" << endl;	}	cout << "end of function" << endl;	mainOptions();}void doWhileStatement(){	cout << "do statement function selected!" << endl;	int doWhileTest = 0;	do	{		cout << doWhileTest << " out of 100!" << endl;		doWhileTest++;	}	while( doWhileTest <= 100 );	cout << "end of function" << endl;	mainOptions();}void fileWrite(){	cout << "file write statement function selected!" << endl;	ofstream fileWriteTest ( "your new file.txt" );	if ( fileWriteTest.is_open() )	{		if( fileWriteTest.good() )		{			fileWriteTest << "Wrting this to the file.\n";		}	}	else	{		cout << "Unable to open the file";	}	cout << "end of function" << endl;	mainOptions();}void fileRead(){	cout << "file read statement function selected!" << endl;	string line;	ifstream fileReadTest ( "your new file.txt" );	if ( fileReadTest.is_open() )	{		while ( fileReadTest.good() )		{			getline ( fileReadTest, line );			cout << line << endl;		}		fileReadTest.close();	}	else	{		cout << "Unable to open the file";	}	cout << "end of function" << endl;	mainOptions();}void inputError(){	cout << "Please make sure you put in a valid number!" << endl;	mainOptions();}void mainOptions(){	cout << "\n\n";	cout << "pick a number between 1 and 7 to run a function" << endl;	cout << "** 1: ifStatement" << endl;	cout << "** 2: switchStatement" << endl;	cout << "** 3: whileStatement" << endl;	cout << "** 4: forStatement" << endl;	cout << "** 5: doWhileStatement" << endl;	cout << "** 6: fileWrite" << endl;	cout << "** 7: fileRead" << endl;}