NIELIT 2016 DEC Scientist B (CS) - Section B: 30

Question

The IOS class member function used for formatting IO is

• A. width(), precision(), read()
• B. width(), precision(), setf()
• C. getch(), width(), Io()
• D. unsetf() ,setf(), write()

Answer 1

Option (B) width(), precision(), setf()

Few standard IOS class functions are:

1. width(): The width method is used to set the required field width. The output will be displayed in the given width
2. precision(): The precision method is used to set the number of the decimal point to a float value
3. fill(): The fill method is used to set a character to fill in the blank space of a field
4. setf(): The setf method is used to set various flags for formatting output
5. unsetf(): The unsetf method is used To remove the flag setting

https://www.geeksforgeeks.org/formatted-i-o-in-c/#:~:text=Formatting%20using%20the%20ios%20members%3A&text=Few%20standard%20ios%20class%20functions,point%20to%20a%20float%20value