What is the purpose of the `group()` method in Java regular expressions?
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Java Programming · all questionsJava Regular Expressions
Java Regular Expressions
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In a regular expression, what does the metacharacter `w` represent?
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Which method is used to append replacement text in a Java regular expression operation?
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In a regular expression, what does the metacharacter `b` represent?
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What is the purpose of the `quote()` method in Java regular expressions?
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In a regular expression, what does the metacharacter `Q` represent?
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Which class is used to represent a group of characters in a regular expression in Java?
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In a regular expression, what does the metacharacter `A` represent?
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What is the purpose of the `reset()` method in Java regular expressions?
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In a regular expression, what does the metacharacter `G` represent?
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What will be the output of the following Java program?
Note : The program is executed at 3 hour 55 minutes and 4 sec (24 hours time).
import java.text.*;
import java.util.*;
class Date_formatting
{
public static void main(String args[])
{
Date date = new Date();
SimpleDateFormat sdf;
sdf = new SimpleDateFormat("hh:mm: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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What does public int end(int group) return?
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What is the significance of Matcher class for regular expression in java?
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Which capturing group can represent the entire expression?
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Which of the following matches end of the string using regular expression in java?
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Which of these formatting strings of SimpleDateFormat class is used to print AM or PM in time?
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Which of the following is not a class of java.util.regex?
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What will be the output of the following Java program?
Note: The program is executed at 3 hour 55 minutes and 4 sec on Monday, 15 July(24 hours time).
import java.text.*;
import java.util.*;
class Date_formatting
{
public static void main(String args[])
{
Date date = new Date();
SimpleDateFormat sdf;
sdf = new SimpleDateFormat("E MMM dd yyyy");
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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What does public int start() return?
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groupCount reports a total number of Capturing groups.
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