What is a FileDescriptor?

OBJECT ORIENTED PROGRAMMING INBUILT CLASSES MCQ

• What are inbuilt classes?
• Inbuilt class __________________________
• What doesn’t inbuilt classes contain?
• Which among the following not an inbuilt class in C++?
• What is InputStream class meant for?
• Which statement is true for Array class?
• What is the use of Math class?
• DataInputStream is derived from ______________________
• Which attribute can be used to get the size of an array?
• Number class can’t manipulate ____________________
• Which function should be used to exit from the program that is provided by System class?
• Which class contain runFinalization() method?
• What does load(String)::= function do, in System class?
• Which is not a System class variable?
• Which package contains the utility classes?
• What is the use of IO class?
• IO class provides input and output through ______________________
• Which among the following class contains the methods to access character based console device?
• File class is ____________________________
• What is a FileDescriptor?
• FileInputStream _________________________
• What does FilePermission class do?
• Which class among the following makes incorrect assumptions?
• Reader class is _________________
• Which class can handle IO class interrupt?
• StringReader handles _____________________
• Which exception handler can be used when character encoding is not supported?
• PushBackReader allows the streams to be pushed back to the stream
• RandomAccessFile can be used to _______________________
• Which among the following is a serialization descriptor for any class?
• Which is a true statement for object of String class?
• How to declare an object of class String?
• What does function length do in String class?
• Which is the function to get the character present at a particular index in the string?
• If only one parameter is passed to substring function then __________________
• If two index are given as argument to substring function then ___________________
• String class have a concat() function that is used to _____________________
• The function lastIndexOf() is used to ___________________
• Function equals() is _______________ and equalIgnoreCase() is _________________
• The compareTo() function is used to ________________
• String class provides function toUpper() to _____________________
• String trim() function is used to _______________________
• Function replace() accepts _____________ arguments
• If two arguments are passed to the indexOf() function then ___________________
• The string class deals with string of only character type

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