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Java Packages Quiz

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Question 1

Which of the following is are true about packages in Java?

1) Every class is part of some package. 
2) All classes in a file are part of the same package. 
3) If no package is specified, the classes in the file 
   go into a special unnamed package 
4) If no package is specified, a new package is created with 
   folder name of class and the class is put in this package.

Only 1, 2 and 3
Only 1, 2 and 4
Only 4
Only 1 and 3

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Question 2

Which of the following is/are advantages of packages?

Packages avoid name clashes
Classes, even though they are visible outside their package, can have fields visible to packages only
We can have hidden classes that are used by the packages, but not visible outside.
All of the above

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Question 3

Predict the output of following Java program

Java

// Note static keyword after import.
import static java.lang.System.*;
  
class StaticImportDemo
{
   public static void main(String args[])
   {      
        out.println("GeeksforGeeks");
   }
}

Compiler Error
Runtime Error
GeeksforGeeks
None of the above

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Question 4

Which of the following statement(s) is/are TRUE regarding Java Servlets? (a) A Java Servlet is a server-side component that runs on the web server and extends the capabilities of a server. (b) A Servlet can use the user interface classes like AWT or Swing.

Only (a) is TRUE.
Only (b) is TRUE.
Both (a) and (b) are TRUE.
Neither (a) nor (b) is TRUE.

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Question 5

Which one of the following is correct?

Java applets can not be written in any programming language
An applet is not a small program
An applet can be run on its own
Applets are embedded in another applications

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Java Quiz

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