// *****************************************************************
// Author:	Zhixiang Chen
// Class:	CSCI/CMPE 1170, Spring 2009
// Lab 5:	Strings, C-strings, and string operations
// Date:	January 12, 2009
// Comment: The code here is meant to be revised.
//
//-----------------------------------------------------------------
//
// This lab exercise is to play with strings, C-strings, and simple string 
// operations such as copying and concatenation.
//
//
// Compile and run your program. When everything is fine,
// print your .cpp file and turn it to me or the TA.
// *****************************************************************

#include < iostream >
#include <fstream >
#include < string >
#include < cstring >
#include < cmath> 
#include <cstdlib>
#include <iomanip>

using namespace std; 

int main( )
{
	//declare string variables
	string line1, line2, line3;			//three string objects
	char str1[50], str1[50], str3[50],	//three arrays of 100 charaters
		str3[5], str4[5];				//two arrays of 5 characters

	//get string inputs
	cout<<"Enter one string without spaces => "; 
	cin>> line1;						//cin cannot get spaces
	cout>>"Enter a line with spaces => "; 
	getline(cin, line2, '\n');			//can spaces

	//string concatenation
	line3 = line1 + line2;				//+ to concatenate two strings
	cout << "line1 is " <<line1 <<endl
		<<"line2 is " << line2 <<endl
		<<"line3 is " << line3 <<endl; 
	
	line1 += line3;						// += to concatenate two strings
	cout<<"Now, line1 becomes " <<line1 <<endl; 

	//get strings
	cout<<"Enter one words => "; 
	cin>>str1;							//cannot get spaces
	cout<<"Enter 'I like C++ very much.' =>"; 
	cin.getline(str2, 50, 'v');			//can get spaces
	
	//string copy
	strcpy(str3, str1);					//copy str1 to str3
	
	//string concatenation
	strcat(str3, str2);					//concatenate str2 to str3
	
	cout<<"str1 is " <<str1 <<endl
		<<"str2 is " <<str2<<endl
		<<"str3 is " <<str3<<endl; 

	//control the input string size
	cout<<"Enter 'CatandDogarefirends.' =>"; 
	cin.width(5);						//set to input up to 4 characters
	cin>>str3; 
	cin>>setw(5)>>str4;					//set  to input up to 4 characters

	cout<<"str3 is " <<str3 <<endl
		<<"str4 is " <<str4<<endl;
 

	/******************************************************************
	 This is for you to complete: 
	 Get three lines from the keyboards. Play with string copying, 
	 concatenation, and input size controling.
	 ******************************************************************/




	//well done and exit
	return 0; 
}