
Java Strings and Regular Expressions
Quiz
•
Computers
•
10th Grade
•
Practice Problem
•
Medium
Chandra Sekhar
Used 5+ times
FREE Resource
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27 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is string manipulation in Java?
Converting strings to integers in Java.
Creating new strings in Java.
Sorting strings alphabetically in Java.
Modifying or manipulating strings using methods and operations in Java.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can regular expressions be used in Java?
By importing the java.util.regex library
By using the java.util.regex class
By using the java.util.regex package
By using the java.util.regex.Pattern class
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of matching patterns with regular expressions?
To search, extract, and manipulate text.
To encrypt and decrypt text
To generate random patterns
To sort and filter data
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can patterns be replaced using regular expressions in Java?
Using the replace() method of the String class
Using the replace() method of the Pattern class
Using the replaceAll() method of the String class
Using the replaceFirst() method of the String class
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of regular expressions in validating input?
Regular expressions are used to generate random input data.
Regular expressions are used to encrypt input data.
Regular expressions are used to convert input data into different formats.
Regular expressions are used to match and validate input data.
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which Java method is used for string concatenation?
append
concat
join
+
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between String and StringBuilder in Java?
String is immutable while StringBuilder is mutable.
String is mutable while StringBuilder is immutable.
String and StringBuilder are the same thing.
String and StringBuilder cannot be used interchangeably.
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