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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 13 of 26

Q121.
What is the output of this program?
    class Output
    {
        public static void main(String args[])
        {
            String str = "true false true";
            boolean x = Boolean.valueOf(str);
            System.out.print(x);
        }
    }
Discuss
Answer: (b).False
Q122.
Which of these class contains all the methods present in Math class?
Discuss
Answer: (b).StrictMath
Q123.
Which of these method return a pseudorandom number?
Discuss
Answer: (b).random()
Q124.
Which of these method returns the remainder of dividend / divisor?
Discuss
Answer: (d).IEEEremainder()
Q125.
Which of these method converts radians to degrees?
Discuss
Answer: (b).toDegree()
Q126.
toRadian() and toDegree() methods were added by which version of Java?
Discuss
Answer: (c).Java 2.0
Q127.
What is the output of this program?
    class Output 
    {
        public static void main(String args[]) 
        {
            double x = 3.14;  
            int y = (int) Math.toDegrees(x);
            System.out.print(y);
        }
    }
Discuss
Answer: (b).179
Q128.
What is the output of this program?
    class Output 
    {
        public static void main(String args[]) 
        {
            double x = 3.14;  
            int y = (int) Math.toRadians(x);
            System.out.print(y);
        }
    }
Discuss
Answer: (a).0
Q129.
Which of these classes encapsulate runtime environment?
Discuss
Answer: (c).Runtime
Q130.
Which of the following exceptions is thrown by every method of Runtime class?
Discuss
Answer: (c).SecurityException

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