C++ Programs Coding Vol.1

8/8/2019 C++ Programs Coding Vol.1

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/* Write a program of swapping two numbers without using third variable using class module with

parameters. */

#include

#include

Class sample

{

Public:

float fx, fy;

Void swap(float fx, float fy)

{

fx=fx+fy;

fy=fx-fy;

fx=fx-fy;

cout


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/* Write a program of student marksheet where Physics, Chemistry and Maths are the subject as

input. */

#include

#include

class marks

{

int r, p, c, m;

char name[20];

public:

void input();

void dis();

};

void marks::input()

{

coutname;

coutr;

coutp;

coutc;

coutm;

}

void marks::dis()

{

int n;


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if(per>=60)

cout


5/24

/* Define a class "Bank" with following data members Acc-no, Name of Depositor, A/C Balance,

Wirte member function to perform following task.

i) Input Values to data members.

ii) Display the information (Acc no, Name, Balance).

iii) Depositor Amt. withdrawn Amt. */

#include

#include

class Bank

{

int acc, bal, cash, withdraw;

char name[20], ch;

public:

void input();

void display();

void input();

void credit();

};

void Bank::input()

{

coutname;

coutacc;

coutbal;

}


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void Bank::display()

{

cout


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for(i=0; i>ch;

switch(ch)

{

case 1:obj.input();

obj.display();

break;

case 2:obj.credit();

obj.display();

break;

}

}

getch();

}

--------------------------x-------------------------------x----------------------------------


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/*Program to increment the value of x by defining it as static variable. */

#include

#include

class test

{

static int x;

public:

void show()

{

x++;

cout


9/24

/*Program for parametrized constructors. */

#include

#include

class test

{

int a, b;

public:

test(int x, int y)

{

a=x;

b=y;

}

void show()

{

cout


10/24

/* Write a class "test" with three float variables fx, fy, fz. Write a parameterized

constructor, assign values of variables. Write a function sum, which calculates sum of

three varaibles and return the results of sum to the calling portion. Display the result

in calling portion. */

#include

#include

class test

{

float fx, fy, fz;

public:

test(float a, float b, float c)

{

fx=a;

fy=b;

fz=c;

}

float show()

{

float sum;

sum=fx+fy+fz;

return(sum);

}

};

void main()

{

clrscr();

test obj(1.2, 1.4, 2.5)


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cout


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/* Take 3 varaibles a,b,c in class sample. Write 2 parameterized constructors where the

first constructor receives values of a and b, the second constructor receives values of

a,b and c and print the value accordingly. */

#include

#include

class sample

{

int a,b,c;

public:

sample(int x, int y)

{

a=x;

b=y;

cout


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sample obj(x,y);

sample obj(x,y,z);

getch();

}

----------------------------x----------------------------x---------------------------------------


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/* Create a class "test" with 2 float values fx and fy. Write 2 functions input() and show()

to accept and print value respectively. Access the function in main memory using pointer

technique. */

#include

#include

class test

{

float fx, fy;

public:

void input();

void show();

};

void test::input()

{

coutfx>>fy;

}

void test::show()

{

cout


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ptr->show();

getch();

}

--------------------------x------------------------------x----------------------------------


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/* Create a class "cal" with 3 integer variables a,b and c. Write two functions input(),

cat(). input() accept the value while the function "cal" finds the total and average

of number and displays it. Use pointer technique access members of class. */

#include

#include

class cal

{

int a, b, c, av;

public:

void input()

{

couta>>b;

}

void cal()

{

c=a+b;

av=c/2;

cout


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ptr->input();

ptr->cal();

getch();

}

-----------------------------x------------------------------ x--------------------------------------


18/24

/* WAP to use reference varaible. */

#include

#include

void main()

{

clrscr();

int x=10;

int &a=x;

cout


19/24

/* WAP to swap 2 integer values using call by reference technique in main function. */

#include

#include

void swap(int a, int b)

{

int *t;

*t=*a;

*a=*b;

*b=*t;

}

void main()

{

clrscr();

int x, y;

coutx>>y;

cout


20/24

/* WAP to pass 2 objects to member function of class "test" has one int private data sem()

receive value of x for 2 objects sums them and print the result. input() receives the values

of x for both the objects. */

#include

#include

class test

{

int x;

public:

void input(int a)

{

x=a;

}

void show()

{

cout


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test obj1, obj2, obj3;

obj1.input(10);

obj2.input(20);

obj1.show();

obj2.show();

obj3.sum(obj1, obj2);

getch();

}

-----------------------------x------------------------------x---------------------------------


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/* WAP to pass 2 objects to member function sum of class test for one integer private data.

sum receives values of x for 2 objects, sum them and return the object to calling portion.

input() receives values of x for both the objects. */

#include

#include

class test

{

int x;

public:

void input(int a)

{

x=a;

}

void show()

{

cout


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test obj1, obj2, obj3;

obj1.input(10);

obj2.input(20);

obj3=obj3.sum(obj1, obj2);

obj1.show();

obj2.show();

obj3.show();

getch();

}

---------------------------x-----------------------------x--------------------------------


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/* Create a class "sample" with 2 static function input() and display(). input() receives

values at run time from user while display() prints the values. */

#include

#include

class sample

{

static int a, b;

public:

static void input();

static void display();

};

void sample::input()

{

couta>>b;

}

void sample::display()

{

cout

C++ Programs Coding Vol.1

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