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Index of programs:Set 6

More on strings

Find vowels in a text

Find vowels in a text file

Reverse a string and copy one string to another without using functions but class

Count number of words.A simple one

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Program 2:

#include #include #include #include /* Author : Rohith.R Email : rrohithr@gmail.com Category : Begineer Program : Read text from file and count vowels Meant For : Plus Two students,Kerala */ void main() { char ch; clrscr(); ifstream infile("vowel"); int v=0; cout<<"\nText:"; while(infile) { infile.get(ch); ch=toupper(ch); switch(ch) { case 'A': case 'E': case 'I': case 'O': case 'U': v=v+1; } } cout<<"\n Number of vowels"<

Program 3:

#include<iostream.h>
#include<string.h>
#include<stdio.h>
#include<conio.h>

/*
   Author        : Rohith.R
   Email         : rrohithr@gmail.com
   Category      : Begineer
   Program       : String reverse and copy using class and with no builtin functions
   Meant For     : Plus Two students,Kerala

*/
class STRING
{
 char text[100];
 public:
 void reader();
 void printer();
 void dstrrev();
 void dstrcpy();
};
void STRING::reader()
{
cout<<"\n Enter string";
gets(text);
}
void STRING::printer()
{
cout<<"\n The string is"<<text;
}
void STRING::dstrrev()
{
char ch,str[15];
int l=strlen(text);
cout<<"\n Length of string is"<<l;
 for(int i=l-1,j=0;i>=0;--i,j++)
 str[j]=text[i];
 str[j]='\0';
 cout<<"i and j are respectively"<<i<<"&&&"<<j;
 cout<<"\n The reversed output is"<<str;
}

void STRING::dstrcpy()
{
 cout<<"\n Enter second string";
 char temtext[100];
 gets(temtext);
 if(strlen(temtext)<=strlen(text))
 {
 int i=0;
 while(temtext[i]!='\0')
 {
 text[i]=temtext[i];
 ++i;
  }
  text[i]='\0';
 cout<<"\n The string is copied";
 cout<<"\n Now string1 is"<<text;
 }
 else
 cout<<"\n The limit got exceeded.Cannot copy";
}

void main()
{
STRING s;
clrscr();
cout<<"\n Enter string...\n";
s.reader();
int option;
do
{
 cout<<"\n Option 1 :   String Reverse"
       "\n Option 2 :   String Copy"
       "\n Option 3 :   String Printing";
       "\n Option 4 :   Quit"
       "\n Option ? :";
	 cin>>option;
  switch(option)
  {

case 1:
  s.dstrrev();
  break;
  case 2:
  s.dstrcpy();
  break;
  case 3:
  s.printer();
  break;
  default:
  cout<<"\n Invalid choice";
} getch();
}while(option<4);
}

Program 4:

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