Code:# include <iostream> using namespace std; # include <cctype> # include <cstring> void readLine (char*); void printLine (char*); void display_Count_of_Words_Lenght (char*); void dispaly_Number_of_Words_In_Sentence (char*); void display_Uppercase_Frequency (char*); void dispaly_SubString_Frequency (char*); void replace_string_with_stars (char*); void main ( ) { void (* AnalyseText[7])(char *)={readLine, printLine, display_Count_of_Words_Lenght, dispaly_Number_of_Words_In_Sentence , display_Uppercase_Frequency, replace_string_with_stars }; int choice; cout<<"Enter a choice :"; cin>>choice; while (choice >=0 && choice <7){ (* AnalyseText[choice])(choice);} } void readLine (char* string1){ cout<<"Enter a line of text:\n"; cin.getline( string1, 100 ); } void printLine (char* string1){ cout<<"The line of text is:"<<string1<<endl; } void display_Count_of_Words_Lenght (char* string1){ int lenght; int count[ ]={0}; for (int i=0; i<10; i++) cout[i]=0; char *token= strtok (string1, " "); while (token != '\0'){ lenght= strlen (token); if(lenght<=10) count[lenght-1]++; token= strtok ('\0', " "); } for(int j=0; j<10; j++) cout<<"lenght"<<j<<":"<<count[j]<<"occurences"; } void dispaly_Number_of_Words_In_Sentence (char* string1){ int count=0; char* token= strtok (string1, " "); while (token != '\0'){ count++; token= strtok ('\0', " "); } for (int i=0; *(string1 +i) !='\0'; i++) cout<<"sentence"<<i<<":"<<count<<"words"; } void display_Uppercase_Frequency (char* string1){ int count=0; for(int i=0; *(string1+i) != '\0'; i++){ if( isupper (*(string1+i)) ) count++;} cout<<"isupper: "<<count; } void dispaly_SubString_Frequency (char* string1){ int count=0; char* string2; cout<<"Enter a string :\n"; cin.getline (string2, 100); char * ptr= strstr (string1, string2); while (ptr != '\0'){ count++; ptr= strstr (ptr+1, string2);} cout<<"The string"<<ptr<<"is repeated"<<count<<"times"; } void replace_string_with_stars (char* string1){ char *string2; cout<<"Enter a string :\n"; cin.getline (string2, 100); char *ptr = strstr (string1, string2); while ( ptr != '\0' ){ strcpy (string1, "*****"); ptr= strstr (ptr+1, string2); } }