Need help in Control Repetition Structure

Discussion in 'C++' started by noratiqah, Feb 23, 2011.

  1. noratiqah

    noratiqah New Member

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    actually i have make some exercise in book c++ programming by D.S Malik page 314 Programming exercise no 5...

    i dunno how to make the repetition
    this is the long way...without using the control repetition structure

    Code:
    #include <iostream>
using namespace std;
int main ()

{
char firstnum, secondnum, thirdnum, forthnum, fifthnum, sixthnum, seventhnum;
int numA, numB, numC, numD, numE, numF, numG;

cout<<"insert letters for phone number";
cin>>firstnum>>secondnum>>thirdnum>>forthnum>>fifthnum>>sixthnum>>seventhnum;
cout<<endl;

 
switch (firstnum)
{
    case 'A':
    case 'a':
    case 'B':
    case 'b':
    case 'C':
    case 'c':
        numA=2;
    break;
    case 'D':
    case 'd':
    case 'E':
    case 'e':
    case 'F':
    case 'f':
        numA=3;
    break;
    case 'G':
    case 'g':
    case 'H':
    case 'h':
    case 'I':
    case 'i':
        numA=4;
    break;
    case 'J':
    case 'j':
    case 'K':
    case 'k':
    case 'L':
    case 'l':
        numA=5;
    break;
    case 'M':
    case 'm':
    case 'N':
    case 'n':
    case 'O':
    case 'o':
        numA=6;
    break;
    case 'P':
    case 'p':
    case 'Q':
    case 'q':
    case 'R':
    case 'r':
    case 'S':
    case 's':
        numA=7;
    break;
    case 'T':
    case 't':
    case 'U':
    case 'u':
    case 'V':
    case 'v':
        numA=8;
    break;
    case 'W':
    case 'w':
    case 'X':
    case 'x':
    case 'Y':
    case 'y':
    case 'Z':
    case 'z':
        numA=9;
    break;
    case '+':
    case '=':
    case '<':
    case '>':
    case '%':
    case '&':
        numA=0;
    break;
    default:
        numA=1;
        }
    switch (secondnum)
{
    case 'A':
    case 'a':
    case 'B':
    case 'b':
    case 'C':
    case 'c':
        numB=2;
    break;
    case 'D':
    case 'd':
    case 'E':
    case 'e':
    case 'F':
    case 'f':
        numB=3;
    break;
    case 'G':
    case 'g':
    case 'H':
    case 'h':
    case 'I':
    case 'i':
        numB=4;
    break;
    case 'J':
    case 'j':
    case 'K':
    case 'k':
    case 'L':
    case 'l':
        numB=5;
    break;
    case 'M':
    case 'm':
    case 'N':
    case 'n':
    case 'O':
    case 'o':
        numB=6;
    break;
    case 'P':
    case 'p':
    case 'Q':
    case 'q':
    case 'R':
    case 'r':
    case 'S':
    case 's':
        numB=7;
    break;
    case 'T':
    case 't':
    case 'U':
    case 'u':
    case 'V':
    case 'v':
        numB=8;
    break;
    case 'W':
    case 'w':
    case 'X':
    case 'x':
    case 'Y':
    case 'y':
    case 'Z':
    case 'z':
        numB=9;
    break;
    case '+':
    case '=':
    case '<':
    case '>':
    case '%':
    case '&':
        numB=0;
    break;
    default:
        numB=1;
    }
switch (thirdnum)
{
    case 'A':
    case 'a':
    case 'B':
    case 'b':
    case 'C':
    case 'c':
        numC=2;
    break;
    case 'D':
    case 'd':
    case 'E':
    case 'e':
    case 'F':
    case 'f':
        numC=3;
    break;
    case 'G':
    case 'g':
    case 'H':
    case 'h':
    case 'I':
    case 'i':
        numC=4;
    break;
    case 'J':
    case 'j':
    case 'K':
    case 'k':
    case 'L':
    case 'l':
        numC=5;
    break;
    case 'M':
    case 'm':
    case 'N':
    case 'n':
    case 'O':
    case 'o':
        numC=6;
    break;
    case 'P':
    case 'p':
    case 'Q':
    case 'q':
    case 'R':
    case 'r':
    case 'S':
    case 's':
        numC=7;
    break;
    case 'T':
    case 't':
    case 'U':
    case 'u':
    case 'V':
    case 'v':
        numC=8;
    break;
    case 'W':
    case 'w':
    case 'X':
    case 'x':
    case 'Y':
    case 'y':
    case 'Z':
    case 'z':
        numC=9;
    break;
    case '+':
    case '=':
    case '<':
    case '>':
    case '%':
    case '&':
        numC=0;
    break;
    default:
        numC=1;
    }

switch (forthnum)
{
    case 'A':
    case 'a':
    case 'B':
    case 'b':
    case 'C':
    case 'c':
        numD=-2;
    break;
    case 'D':
    case 'd':
    case 'E':
    case 'e':
    case 'F':
    case 'f':
        numD=-3;
    break;
    case 'G':
    case 'g':
    case 'H':
    case 'h':
    case 'I':
    case 'i':
        numD=-4;
    break;
    case 'J':
    case 'j':
    case 'K':
    case 'k':
    case 'L':
    case 'l':
        numD=-5;
    break;
    case 'M':
    case 'm':
    case 'N':
    case 'n':
    case 'O':
    case 'o':
        numD=-6;
    break;
    case 'P':
    case 'p':
    case 'Q':
    case 'q':
    case 'R':
    case 'r':
    case 'S':
    case 's':
        numD=-7;
    break;
    case 'T':
    case 't':
    case 'U':
    case 'u':
    case 'V':
    case 'v':
        numD=-8;
    break;
    case 'W':
    case 'w':
    case 'X':
    case 'x':
    case 'Y':
    case 'y':
    case 'Z':
    case 'z':
        numD=-9;
    break;
    case '+':
    case '=':
    case '<':
    case '>':
    case '%':
    case '&':
        numD=0;
    break;
    default:
        numD=1;
    }
    switch (fifthnum)
{
    case 'A':
    case 'a':
    case 'B':
    case 'b':
    case 'C':
    case 'c':
        numE=2;
    break;
    case 'D':
    case 'd':
    case 'E':
    case 'e':
    case 'F':
    case 'f':
        numE=3;
    break;
    case 'G':
    case 'g':
    case 'H':
    case 'h':
    case 'I':
    case 'i':
        numE=4;
    break;
    case 'J':
    case 'j':
    case 'K':
    case 'k':
    case 'L':
    case 'l':
        numE=5;
    break;
    case 'M':
    case 'm':
    case 'N':
    case 'n':
    case 'O':
    case 'o':
        numE=6;
    break;
    case 'P':
    case 'p':
    case 'Q':
    case 'q':
    case 'R':
    case 'r':
    case 'S':
    case 's':
        numE=7;
    break;
    case 'T':
    case 't':
    case 'U':
    case 'u':
    case 'V':
    case 'v':
        numE=8;
    break;
    case 'W':
    case 'w':
    case 'X':
    case 'x':
    case 'Y':
    case 'y':
    case 'Z':
    case 'z':
        numE=9;
    break;
    case '+':
    case '=':
    case '<':
    case '>':
    case '%':
    case '&':
        numE=0;
    break;
    default:
        numE=1;
    }
    switch (sixthnum)
{
    case 'A':
    case 'a':
    case 'B':
    case 'b':
    case 'C':
    case 'c':
        numF=2;
    break;
    case 'D':
    case 'd':
    case 'E':
    case 'e':
    case 'F':
    case 'f':
        numF=3;
    break;
    case 'G':
    case 'g':
    case 'H':
    case 'h':
    case 'I':
    case 'i':
        numF=4;
    break;
    case 'J':
    case 'j':
    case 'K':
    case 'k':
    case 'L':
    case 'l':
        numF=5;
    break;
    case 'M':
    case 'm':
    case 'N':
    case 'n':
    case 'O':
    case 'o':
        numF=6;
    break;
    case 'P':
    case 'p':
    case 'Q':
    case 'q':
    case 'R':
    case 'r':
    case 'S':
    case 's':
        numF=7;
    break;
    case 'T':
    case 't':
    case 'U':
    case 'u':
    case 'V':
    case 'v':
        numF=8;
    break;
    case 'W':
    case 'w':
    case 'X':
    case 'x':
    case 'Y':
    case 'y':
    case 'Z':
    case 'z':
        numF=9;
    break;
    case '+':
    case '=':
    case '<':
    case '>':
    case '%':
    case '&':
        numF=0;
    break;
    default:
        numF=1;
    }
    switch (seventhnum)
{
    case 'A':
    case 'a':
    case 'B':
    case 'b':
    case 'C':
    case 'c':
        numG=2;
    break;
    case 'D':
    case 'd':
    case 'E':
    case 'e':
    case 'F':
    case 'f':
        numG=3;
    break;
    case 'G':
    case 'g':
    case 'H':
    case 'h':
    case 'I':
    case 'i':
        numG=4;
    break;
    case 'J':
    case 'j':
    case 'K':
    case 'k':
    case 'L':
    case 'l':
        numG=5;
    break;
    case 'M':
    case 'm':
    case 'N':
    case 'n':
    case 'O':
    case 'o':
        numG=6;
    break;
    case 'P':
    case 'p':
    case 'Q':
    case 'q':
    case 'R':
    case 'r':
    case 'S':
    case 's':
        numG=7;
    break;
    case 'T':
    case 't':
    case 'U':
    case 'u':
    case 'V':
    case 'v':
        numG=8;
    break;
    case 'W':
    case 'w':
    case 'X':
    case 'x':
    case 'Y':
    case 'y':
    case 'Z':
    case 'z':
        numG=9;
    break;
    case '+':
    case '=':
    case '<':
    case '>':
    case '%':
    case '&':
        numG=0;
    break;
    default:
        numG=1;
    }
cout<<numA<<numB<<numC<<numD<<numE<<numF<<numG<<endl;
return 0;
}
    please do help me i think we can use 'while' but i dunno how
     
    Last edited by a moderator: Feb 23, 2011
    noratiqah, Feb 23, 2011
    SHARE #1
  2. xpi0t0s

    xpi0t0s Mentor

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    Could you clarify the question please? We do not all have the same books as you. Or copy the question here (which might be better than a beginner's paraphrase).

    Or advise where it can be downloaded from, if that is possible. Found lots of hits in Google, but all the ones I followed were dead ends.
     
    xpi0t0s, Feb 24, 2011
    SHARE #2

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