String 1: [Test of char * constructor] The question of whether a computer can think
String 2: [Another test of const char *]  is no more interesting than that of whether a submarine can swim
String 3: [Test of String addition and copy ctor] The question of whether a computer can think is no more interesting than that of whether a submarine can swim
String 4: E. Djkstra
Length of String 4 is: 10
String3 [After destruction of String 2]: The question of whether a computer can think is no more interesting than that of whether a submarine can swim
Strings 2-4 [Test of operator =]: Pepsi and Coke
Strings 2-4 [Test of operator +=]: PepsiandCoke andCoke Coke
String 2: PepsiandCoke
String 4: Coke
String 2 == String 4 : No 
String 2 != String 4 : Yes 
strlen (s1) is: [Test cast]: 44
Done with Testing.  Bye.