gan ane ingin mengalikan 2 variabel char bijimana gan? kok gagal di mari ya? ceritanya pengen nambah munculin IPK, yang artinya mesti nyari IP yang berasal dari (nilai*sks)/jumlah_sks terus IPnya dikali, ngecun jalannya ane, implementasinya ke C++ nya gak ngerti gan
help ya gan

punya ane:

[size="2"]#include <iostream>

#include <cstring>

#include <cstdlib>



using namespace std;



class Matakuliah

{

 char kodeMk[10];

 char namaMk[50];

 int sks;

 char nilai [4];

 [B][color=red] char totalNilai;

 int a,b;

 a = sks; //gagal !!

 b = nilai; //ke void lihatIPK gan [/color][/B]



 public:

 void input()

 {

 cout<<"Kode Matakuliah : ";

 cin.get(kodeMk,10,'\n');

 cin.ignore(1,'\n');

 cout<<"Nama Matakuliah : ";

 cin.get(namaMk,50,'\n');

 cin.ignore(1,'\n');

 cout<<"SKS : ";

 cin>>sks;

 cout<<"Nilai : ";

 cin>>nilai;



 }



 void cetakMk()

 {

 cout<<"Kode Matakuliah : "<<kodeMk<<endl;

 cout<<"Nama Matakuliah : "<<namaMk<<endl;

 cout<<"SKS : "<<sks<<endl;

 cout<<"Nilai : "<<nilai<<endl;

 }

};



class Mahasiswa

{

 private:

 char nama[30];

 char npm[10];

 Matakuliah mk[50]; //penginisialisasian Mtakuliah menjadi mk

 int jmlMk;



 public:

 void input()

 {

 cout<<"Nama Mahasiswa : ";

 cin.get(nama,30,'\n');

 cin.ignore(1,'\n');

 cout<<"NPM : ";

 cin.get(npm,10,'\n');

 cin.ignore(1,'\n');

 cout<<"Banyak Matakuliah : ";

 cin>>jmlMk;



 for (int i=0;i<jmlMk; i++)

 {

 cin.ignore(1,'\n');

 mk[i].input();

 }

 }



 void cetakData()

 {

 cout<<"\n--------------------------\n\nNama : "<<nama<<endl;

 cout<<"NPM : "<<npm<<"\n\n--------------------------\n";

 for (int i=0;i<jmlMk; i++)

 mk[i].cetakMk();



 }



 [B][color=red]void lihatIPK()

 {

 char ipk, jumlahSks, jumlahNilai;

 totalNilai= sks * nilai;

 cout<<"Total nilai :"<<totalNilai; //gagal !!





 }[/color][/B]

};







int main()

{

 Mahasiswa mhs; //inisialisasi Mahasiswa menjadi mhs

 mhs.input();

 mhs.cetakData();



 //mhs.lihatIPK();

 system ("pause");

 return 0;

}[/size]

nih source codenya gan:

[size="3"]#include <iostream>

#include <cstring>

using namespace std;



class Matakuliah{

char kode[10];

char namaMk[50];

int sks;

char nilai;



public:

void input(){

cout<<"kode : ";

cin.get(kode,10,'\n');

cin.ignore(1,'\n');

cout<<"nama MK : ";

cin.get(namaMk,50,'\n');

cin.ignore(1,'\n');

cout<<"sks : ";

cin>>sks;

cout<<"Nilai : ";

cin>>nilai;

}

void cetakMk(){

cout<<"Kode : "<<kode<<endl;

cout<<"Nama MK : "<<namaMk<<endl;

cout<<"SKS : "<<sks<<endl;

cout<<"Nilai : "<<nilai<<endl;

}

};

class Mahasiswa{

private:

char nama[30];

char npm[10];



Matakuliah mk[50];

int jmlMk;

public:

void input(){

cout<<"Nama mhs : ";

cin.get(nama,30,'\n');

cin.ignore(1,'\n');

cout<<"NPM : ";

cin.get(npm,10,'\n');

cin.ignore(1,'\n');

cout<<"Banyak MK : ";

cin>>jmlMk;



for (int i=0;i<jmlMk; i++)

{

cin.ignore(1,'\n');

mk[i].input();

}

}

void cetakData(){

cout<<"\n--------------------------\nNama : "<<nama<<endl;

cout<<"NPM : "<<npm<<endl;



cout<<"\n--------------------------\n";

for (int i=0;i<jmlMk; i++)

mk[i].cetakMk();



}

};

int main() {

Mahasiswa mhs;

mhs.input();

mhs.cetakData();

//mhs.lihatIPK();

return 0;

}[/size]