Question:7
Class time (h, m and s)
C++ program to declare a class named time with attributes as h, m and s. Take input for two times calculate and display their sum.
Sol:
Solution In CodeBlocks/DevC++
#include<iostream>
#include<conio.h>
using namespace std;
class time
{
private:
int h,m,s;
public:
void read();
void show();
friend time add(time t1,time t2);
};
void time::read()
{
cout<<"enter h,m and s ";
cin>>h>>m>>s;
}
void time::show()
{
cout<<h<<" : "<<m<<" : "<<s<<endl;
}
time add(time t1,time t2)
{
time t;
t.h=t1.h+t2.h;
t.m=t1.m+t2.m;
t.s=t1.s+t2.s;
if(t.s>=60)
{
t.m=t.m+t.s/60;
t.s=t.s%60;
}
if(t.m>=60)
{
t.h=t.h+t.m/60;
t.m=t.m%60;
}
return(t);
}
int main()
{
/* clrscr(); */
time e1,e2,e3;
e1.read();e2.read();
e1.show();e2.show();
e3=add(e1,e2);
e3.show();
getch();
return(0);
}
/* Output */ enter h,m and s 5 35 45 enter h,m and s 8 45 50 5 : 35 : 45 8 : 45 : 50 14 : 21 : 35
Solution In Turboc3
/* this program is developed in turboc3 */
#include<iostream.h>
#include<conio.h>
class time
{
private:
int h,m,s;
public:
void read();
void show();
friend time add(time t1,time t2);
};
void time::read()
{
cout<<"enter h,m and s ";
cin>>h>>m>>s;
}
void time::show()
{
cout<<h<<" : "<<m<<" : "<<s<<endl;
}
time add(time t1,time t2)
{
time t;
t.h=t1.h+t2.h;
t.m=t1.m+t2.m;
t.s=t1.s+t2.s;
if(t.s>=60)
{
t.m=t.m+t.s/60;
t.s=t.s%60;
}
if(t.m>=60)
{
t.h=t.h+t.m/60;
t.m=t.m%60;
}
return(t);
}
void main()
{
clrscr();
time e1,e2,e3;
e1.read();e2.read();
e1.show();e2.show();
e3=add(e1,e2);
e3.show();
getch();
}
/* Output */ enter h,m and s 5 35 45 enter h,m and s 8 45 50 5 : 35 : 45 8 : 45 : 50 14 : 21 : 35
Question:8
Class string(str)
C++ program to declare a class named string with attribute as “str”. Take input for two strings and concatenate(join) them.
Sol:
Solution In CodeBlocks/DevC++
#include<iostream>
#include<conio.h>
#include<string.h>
using namespace std;
class string1
{
char str[20];
public:
void read();
void show();
friend string1 add(string1 s1,string1 s2);
};
void string1::read()
{
cout<<"Enter any string ";
cin>>str;
}
void string1::show()
{
cout<<"string is "<<str<<endl;
}
string1 add(string1 s1,string1 s2)
{
string1 t;
strcpy(t.str,s1.str);
//strcat(t.str," ");
strcat(t.str,s2.str);
return(t);
}
int main()
{
/* clrscr(); */
string1 e1,e2,e3;
e1.read();e2.read();
e1.show();e2.show();
e3=add(e1,e2);
e3.show();
getch();
return(0);
}
/* Output */ Enter any string Hello Enter any string World string is Hello string is World string is HelloWorld
Solution In Turboc3
/* this program is developed in turboc3 */
#include<iostream.h>
#include<conio.h>
#include<string.h>
class string
{
char str[20];
public:
void read();
void show();
friend string add(string s1,string s2);
};
void string::read()
{
cout<<"Enter any string ";
cin>>str;
}
void string::show()
{
cout<<"string is "<<str<<endl;
}
string add(string s1,string s2)
{
string t;
strcpy(t.str,s1.str);
//strcat(t.str," ");
strcat(t.str,s2.str);
return(t);
}
void main()
{
clrscr();
string e1,e2,e3;
e1.read();e2.read();
e1.show();e2.show();
e3=add(e1,e2);
e3.show();
getch();
}
/* Output */ Enter any string Hello Enter any string World string is Hello string is World string is HelloWorld
Question:9
Class complex(real,img)
C++ program to declare a class named complex with attributes as real and img. Take input for two complex numbers calculate and display their sum in the given format.
A + i B
A – i B
Real +/- i img
Sol:
Solution In CodeBlocks/DevC++
#include<iostream>
#include<conio.h>
#include<string.h>
using namespace std;
class complex
{
private:
int real,img;
public:
void read();
void show();
friend complex add(complex c1,complex c2);
};
void complex::read()
{
cout<<"Enter values of real and img ";
cin>>real>>img;
}
void complex::show()
{
if(img>=0)
cout<<real<<" +i "<<img<<endl;
else
cout<<real<<" -i "<<img*-1<<endl;
}
complex add(complex c1,complex c2)
{
complex t;
t.real=c1.real+c2.real;
t.img=c1.img+c2.img;
return(t);
}
int main()
{
/* clrscr(); */
complex e1,e2,e3;
e1.read();e2.read();
e1.show();e2.show();
e3=add(e1,e2);
e3.show();
getch();
return(0);
}
/* Output */ Ex:1 Enter values of real and img 5 6 Enter values of real and img 8 9 5 +i 6 8 +i 9 13 +i 15 Ex:2 Enter values of real and img 5 -9 Enter values of real and img 3 -7 5 -i 9 3 -i 7 8 -i 16
Solution In Turboc3
/* this program is developed in turboc3 */
#include<iostream.h>
#include<conio.h>
class complex
{
private:
int real,img;
public:
void read();
void show();
friend complex add(complex c1,complex c2);
};
void complex::read()
{
cout<<"Enter values of real and img ";
cin>>real>>img;
}
//****
void complex::show()
{
if(img>=0)
cout<<real<<" +i "<<img<<endl;
else
cout<<real<<" -i "<<img*-1<<endl;
}
complex add(complex c1,complex c2)
{
complex t;
t.real=c1.real+c2.real;
t.img=c1.img+c2.img;
return(t);
}
void main()
{
clrscr();
complex e1,e2,e3;
e1.read();e2.read();
e1.show();e2.show();
e3=add(e1,e2);
e3.show();
getch();
}
/* Output */ Ex:1 Enter values of real and img 5 6 Enter values of real and img 8 9 5 +i 6 8 +i 9 13 +i 15 Ex:2 Enter values of real and img 5 -9 Enter values of real and img 3 -7 5 -i 9 3 -i 7 8 -i 16
