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Java Regular Expressions MCQ Questions

Test your knowledge of Regular Expressions in Java with these multiple choice questions. Practice and enhance your skills for Java-related exams. Page-5 section-1

41
Which of these package is used for text formatting in Java programming language?
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Answer & Solution
Answer: Option A
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42
What will be the output of the following Java program?
import java.text.*;
import java.util.*;
class Date_formatting
{	 
    public static void main(String args[])
    {
  Date date = new Date();
  SimpleDateFormat sdf;
        sdf = new SimpleDateFormat("mm:hh:ss");
        System.out.print(sdf.format(date));
    }	
}

Note : The program is executed at 3 hour 55 minutes and 4 sec (24 hours time).
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Answer & Solution
Answer: Option C
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43
Which of this class can be used to format dates and times?
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Answer & Solution
Answer: Option C
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44
Which of these class allows us to define our own formatting pattern for dates and time?
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Answer & Solution
Answer: Option B
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45
Which of these formatting strings of SimpleDateFormat class is used to print week of the year?
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Answer & Solution
Answer: Option A
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46
Which of the following matches nonword character using regular expression in java?
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Answer & Solution
Answer: Option B
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47
What will be the output of the following Java program?
import java.text.*;
import java.util.*;
class Date_formatting
{	 
    public static void main(String args[])
    {
  Date date = new Date();
  SimpleDateFormat sdf;
        sdf = new SimpleDateFormat("z");
        System.out.print(sdf.format(date));
    }	
}

Note : The program is executed at 3 hour 55 minutes and 4 sec on Monday, 15 July(24 hours time).
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Answer & Solution
Answer: Option D
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48
Which of these method returns an instance of DateFormat that can format time information?
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Answer & Solution
Answer: Option B
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49
what does public String replaceAll(string replace) do?
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Answer & Solution
Answer: Option D
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50
Object of which class is used to compile regular expression?
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Answer & Solution
Answer: Option A
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