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Which of the following class is used for ios::out mode operator?
a) of stream                        
b) ifstream
c) fstream                             
d) none of these

a

Which of the following class is used for ios::in mode operator?
a) of stream                         
b) ifstream
c) fstream                             
d) none of these

b

Which of the following class is used for ios::out |ios::in mode operator?
a) of stream                         
b) ifstream
c) fstream                            
d) none of these

c

Which manipulator is used to set number of digits to be displayed after decimal points?
a) Setw                                  
b) setprecision
c) Setfill                                
d) none of these

b

Which manipulator is used to replace the leading or trailing blanks in output?
a) Setw                                  
b) setprecision
c) Setfill                                               
d) none of these

c

Which manipulator is used to establish a field width for the value immediately?
a) Setw                                  
b) setprecision
c) imanip                              
d) none of these

a