NSLog or printf function

• NSLog is same as printf function of 'C', with differences that it prints date, time and also gives newline character at the end.

• Format modifier works the same way with NSLog function.

• NSLog (@"Hello, Objective-C!");

• NSLog (@"My Age is : %d", 27);

• NSLog can take “%@” modifier for printing NSString. This is not available in 'C'.