Selenium WebDriver with Java - Basics to Advanced and Frameworks - Practice Exercise Reverse String Logic-Palindrome

The video tutorial explains how to reverse a string and check if it is a palindrome. It begins with an introduction to the concept of string reversal and palindromes, followed by a detailed explanation of using loops to reverse a string. The tutorial also covers character methods for string manipulation and demonstrates how to build a reversed string. Finally, it concludes with a summary of the key takeaways, emphasizing the importance of understanding string reversal in programming interviews.

What is a palindrome?

• A string that is longer than 10 characters

• A string that contains only vowels

• A string that reads the same backward as forward

• A string that contains no spaces

Which loop condition is used to reverse a string?

• i >= string.length()

• i < string.length()

• i > 0

• i == string.length()

What method is used to access a character at a specific index in a string?

• charAt()

• indexOf()

• substring()

• getChar()

How do you concatenate two strings in Java?

• Using the & operator

• Using the * operator

• Using the - operator

• Using the + operator

What is the purpose of creating a dummy string in the reversal process?

• To store the original string

• To store the reversed string

• To store the index of the string

• To store the length of the string

Why is reversing a string a common interview question?

• It is a simple task that requires no logic

• It tests knowledge of string methods

• It tests understanding of loops and string manipulation

• It is a common real-world problem

What is the final step in checking if a string is a palindrome?

• Removing all spaces from the string

• Printing the original string

• Comparing the original and reversed strings

• Counting the number of characters