Object Oriented Programming - I (3140705) MCQs
MCQs of Binary I/O ,Recursion and Generics
| 1. |
Which of these packages contain classes and interfaces used for input & output operations of a program?
|
||||||||
|
Answer:
Option (c) |
| 2. |
Which of these class is not a member class of java.io package?
|
||||||||
|
Answer:
Option (a) |
| 3. |
Which of these interface is not a member of java.io package?
|
||||||||
|
Answer:
Option (c) |
| 4. |
Which of these class is not related to input and output stream in terms of functioning?
|
||||||||
|
Answer:
Option (a) |
| 5. |
Which of these is specified by a File object?
|
||||||||
|
Answer:
Option (c) |
| 6. |
Which of these is method for testing whether the specified element is a file or a directory?
|
||||||||
|
Answer:
Option (b) |
| 7. |
What will be the output of the following Java code?
import java.io.*;
class files
{
public static void main(String args[])
{
File obj = new File("/java/system");
System.out.print(obj.getName());
}
}
|
||||||||
|
Answer:
Option (b) |
| 8. |
What will be the output of the following Java program? (Note: file is made in c drive.)
import java.io.*;
class files
{
public static void main(String args[])
{
File obj = new File("/java/system");
System.out.print(obj.getAbsolutePath());
}
}
|
||||||||
|
Answer:
Option (d) |
| 9. |
What will be the output of the following Java program? (Note: file is made in c drive.)
import java.io.*;
class files
{
public static void main(String args[])
{
File obj = new File("/java/system");
System.out.print(obj.getParent());
System.out.print(" " + obj.isFile());
}
}
|
||||||||
|
Answer:
Option (c) |
| 10. |
Which of these classes is used for input and output operation when working with bytes?
|
||||||||
|
Answer:
Option (a) |
Developed by
