Archive for March 2015
Assignment-3 NUST OOP in C++
Write a class “Line” with following
specifications
• three data members, endp1, endp2 and char
pointer linetype (Give any character value in linetype e.g B implies bold line,
N implies normal line and S implies straight line)
• default constructor with default arguments
• copy constructor
• Write getter & setter functions.
• calculateLength method which calculates the
length of the line
• compareLine method which compares two line
objects and tells which line is longer (use this pointer to use the current
objects data members, you can pass 2nd object in the parameter of
this function)
• In main program
} Create line1 object so that default
constructor is called
} Create line2 object using line1 object (copy constructor must be called)
} Calculate the length of each line object and
compare them by calling functions.
#include<iostream>
#include<conio.h>
using namespace std;
class line{
private:
int endp1;
int endp2;
char *linetype;
public:
line(int x = 0, int y = 20, char z = 'B'){
endp1 = x;
endp2 = y;
linetype = new char;
*linetype = z;
}
line(const line& l1){
this->endp1 = l1.endp1;
this->endp2 = l1.endp2;
this->linetype = new char;
*linetype = *l1.linetype;
}
void setVal(int x, int y, char z){
endp1 = x;
endp2 = y;
*linetype = z;
}
void getVal(){
cout << "Enp1: " << endp1 << endl<< "Endp2: " << endp2 << endl << "Line Type: " << *linetype << endl;
}
void calcLength(){
cout << "Length of line is: " << endp2 - endp1 << endl;
}
void compareL(line &l1){
if ((this->endp2 - this->endp1) > (l1.endp2 - l1.endp1)){
cout << "Line is greater then the sended line";
}
else if ((this->endp2 - this->endp1) < (l1.endp2 - l1.endp1)){
cout << "Line is smaller then the sended line";
}
else{
cout << "Lines are equal";
}
}
};
void main(){
line l1;
line l2(l1);
l1.getVal();
l1.calcLength();
cout << endl << endl;
l2.getVal();
l2.calcLength();
cout << endl<< "Setting l2 new values" << endl;
l2.setVal(10, 15, 'N');
l2.getVal();
l2.calcLength();
cout << endl << "Comparing l1 and l2" << endl;
l1.compareL(l2);
_getch();
}
#include<conio.h>
using namespace std;
class line{
private:
int endp1;
int endp2;
char *linetype;
public:
line(int x = 0, int y = 20, char z = 'B'){
endp1 = x;
endp2 = y;
linetype = new char;
*linetype = z;
}
line(const line& l1){
this->endp1 = l1.endp1;
this->endp2 = l1.endp2;
this->linetype = new char;
*linetype = *l1.linetype;
}
void setVal(int x, int y, char z){
endp1 = x;
endp2 = y;
*linetype = z;
}
void getVal(){
cout << "Enp1: " << endp1 << endl<< "Endp2: " << endp2 << endl << "Line Type: " << *linetype << endl;
}
void calcLength(){
cout << "Length of line is: " << endp2 - endp1 << endl;
}
void compareL(line &l1){
if ((this->endp2 - this->endp1) > (l1.endp2 - l1.endp1)){
cout << "Line is greater then the sended line";
}
else if ((this->endp2 - this->endp1) < (l1.endp2 - l1.endp1)){
cout << "Line is smaller then the sended line";
}
else{
cout << "Lines are equal";
}
}
};
void main(){
line l1;
line l2(l1);
l1.getVal();
l1.calcLength();
cout << endl << endl;
l2.getVal();
l2.calcLength();
cout << endl<< "Setting l2 new values" << endl;
l2.setVal(10, 15, 'N');
l2.getVal();
l2.calcLength();
cout << endl << "Comparing l1 and l2" << endl;
l1.compareL(l2);
_getch();
}
Assingment 2 Task -2 NUST OOP C++
Create dynamic array you can change the
prototype of function where you feel necessary. N is the size of the array
1. void
populate_array(int *array, int N);
// this initializes an array of size N with random
values.
2. void
print_array(int *array, int N);
// this function prints the entire array.
4. void sort (int
*array, int N);
//sort the elements of array in ascending order
5. void search (int
*array, int N);
//search the element in the array entered by the user.
#include<iostream>
#include<conio.h>
using namespace std;
void populate_array(int *array, int N);
void print_array(int *array, int N);
void search(int *array, int N);
void main(){
int x;
cout
<<"Enter a number";
cin
>> x;
int
*arr1 = new int[x];
populate_array(arr1,
x);
print_array(arr1,
x);
search(arr1,
x);
_getch();
}
void populate_array(int *array1, int N){
for
(int i = 0; i < N; i++){
*array1
= rand()%100;
array1++;
}
}
void print_array(int *array1, int N){
for
(int i = 0; i < N; i++)
{
cout
<< *array1 << " ";
array1++;
}
}
void search(int *array1, int N){
int x;
bool y
= 0;
cout
<< "Enter number to search: ";
cin
>> x;
for
(int i = 0; i < N; i++)
{
if
(*array1 == x){
cout
<< "THe elemnt is found at position: " << i+1;
y
= 1;
break;
}
array1++;
}
if (y
== 0){
cout
<< "Element is not present in array";
}
}
Assingment 2 Task -1 NUST OOP C++
Task-1:
Write a program to implement the Date class
which has three data members: day, month
and year. Provide two constructors, one which takes arguments and another
one which does not (you may set values of data members to 0). Write getter and
setter functions (input and show functions) for the class. Write a member
function pastDate() which tell where the date is the past date or not.
In main program:
Create two objects using two difference
constructors
Call setter and getter functions on those
objects.
Call the pastDate() function.
#include<iostream>
#include<conio.h>
using namespace std;
class Date{
private: int day;
int month;
int year;
public:
//constructors
Date();
Date(int,
int, int);
//member
funcs
void setDate(int,
int, int); //set date
void
getDate(); //print
date
void
chkPast(int, int, int); //chk
date is past or not
};
Date::Date(){
day =
0;
month =
0;
year =
0;
}
Date::Date(int x, int y, int z){
day =
x;
month =
y;
year =
z;
}
void Date::setDate(int x, int y, int z){
day =
x;
month =
y;
year =
z;
}
void Date::getDate(){
cout
<< "dd-mm-yy" << endl;
cout
<< day << "-" << month << "-"
<< year << endl;
}
void Date::chkPast(int x, int y, int z){
if (z
< year){
cout
<< x << "-" << y << "-" << z
<< " is a past date then ";
}
else if
(z == year && y< month){
cout
<< x << "-" << y << "-" << z
<< " is a past date then ";
}
else if
(z == year && month == y && x < day){
cout
<< x << "-" << y << "-" << z
<< " is a past date then ";
}
else if
(z == year && month == y && x == day){
cout
<< x << "-" << y << "-" << z
<< " is a current date" << endl;
}
else {
cout
<< x << "-" << y << "-" << z
<< " is a future date" << endl;
}
}
void main(){
Date
d1;
Date
d2(10, 12, 1996);
cout
<< "Date-1 is:" << endl;
d1.getDate();
d1.chkPast(10,
12, 2000);
cout
<< endl << endl << "Date-2 is:" << endl;
d2.getDate();
d2.chkPast(10,
11, 1994);
_getch();
}
