Explain the changing field width, C/C++ Programming

Assignment Help:

Changing Field width

The printf() and scanf() functions from the standard library, use width specifier for controlling the width of its output . Similarly, the ostream class also has a member function width() for the same. This function has the following prototype.

                int width(void);

                int width(int newsize);

The first form returns the current field width. The default is always zero. That is because, the cout object always uses space just wide enough to output the values and a default size if zero matches all. The second form can be used to alter the current width setting. The argument passed to it is the new width to be set. It also returns the previous width. The width () function affects only the next item displayed. The filed width reverts to default afterwards.

e.g.

                void main()

                 {

                                cout<<" default width="<< cout.width()<

                                cout<<"[";

                                cout.width(10);                                 Set width to 10

                                cout<<"A";

                                cout<<"]";

                }

 


Related Discussions:- Explain the changing field width

Program to list the cities and their states, The program will ask the user ...

The program will ask the user to enter: '1' to List the cities(and their state abbrev)  from largest to smallest (by their population) with their population '2'  to List the

C program to check display days and months , C program to check display ...

C program to check display days and month main() {           int months, days;           clrscr();           printf("ENTER DAYS: ");           scanf("%d", &days);

Built a web crawler , To develop a web crawler such that when given a base ...

To develop a web crawler such that when given a base URL, it will traverse the entire web tree and then build an index of keywords and what URL link they appear on.   The web crawl

#c++ homework, write c++programm that converts degrees Kelvin (TK) to degr...

write c++programm that converts degrees Kelvin (TK) to degrees Fahrenheit(TR) recall that TF=(9/5)TK and that TF=TR-459.67

C++ Assignment Help me , Write a c++ program that contain the following fun...

Write a c++ program that contain the following functions : 1) Function Quality_Point that takes one int argument (student_average) and return ‘A’ if the student_average between 90-

.luminous jewels, Byteland county is very famous for luminous jewels. Lumin...

Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec

Programming, what is the first thing I need to know about Programming?

what is the first thing I need to know about Programming?

Project, Project Overview A certain financial institution (bank) wishes to ...

Project Overview A certain financial institution (bank) wishes to promote its new business products/services by conducting road shows in rural areas. Their aim is to encourage peop

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd