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Welcome to the java lang and java io MCQs Page

Dive deep into the fascinating world of java lang and java io with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of java lang and java io, a crucial aspect of Java Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of java lang and java io, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Java Programming.

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Check out the MCQs below to embark on an enriching journey through java lang and java io. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Java Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of java lang and java io. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

java lang and java io MCQs | Page 6 of 26

Q51.
What is the output of this program?
    class Output
    {
        public static void main(String args[])
        {
     Double i = new Double(257.578123456789);  
            float x = i.floatValue();
            System.out.print(x);
        }
    }
Discuss
Answer: (c).257.57812
Q52.
What is the output of this program?
    class Output
    {
        public static void main(String args[])
        {
            Double y = new Double(257.57812);
     Double i = new Double(257.578123456789);  
            try
            {
         int x = i.compareTo(y);
                System.out.print(x);
            }
            catch(ClassCastException e)
            {
                System.out.print("Exception");
            }
 }
    }
Discuss
Answer: (b).1
Q53.
Which of these packages contain classes and interfaces used for input & output operations of a program?
Discuss
Answer: (c).java.io
Q54.
Which of these class is not a member class of java.io package?
Discuss
Answer: (a).String
Q55.
Which of these interface is not a member of java.io package?
Discuss
Answer: (c).ObjectFilter
Q56.
Which of these class is not related to input and output stream in terms of functioning?
Discuss
Answer: (a).File
Q57.
Which of these is specified by a File object?
Discuss
Answer: (c).directory in disk
Q58.
Which of these is method for testing whether the specified element is a file or a directory?
Discuss
Answer: (b).isFile()
Q59.
What is the output of this program?
    import java.io.*;
    class files 
    {
        public static void main(String args[]) 
        {
            File obj = new File("/java/system");
            System.out.print(obj.getName());
        }
    }
Discuss
Answer: (b).system
Q60.
What is the output of this program?
    import java.io.*;
    class files 
    {
        public static void main(String args[]) 
        {
            File obj = new File("/java/system");
            System.out.print(obj.getAbsolutePath());
        }
    }
Discuss
Answer: (d).\java\system
Page 6 of 26

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