Complete the below method, isPalindrome(), that takes in a String and returns a boolean. The boolean should be true if the String is a palindrome, i.e., the String is the same if read forwards or in reverse. For example, "racecar" is a palindrome. The method should return false if the String is not a palindrome. Note: any single-letter word is considered a palindrome.

public class StringMethod {
public static boolean isPalindrome(String word) {
//TODO: Complete this method

}
}

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ANCKPOP ANCKPOP · Answer 1 · 2020-07-31T16:47:21+02:00

Answer:

public static boolean isPalindrome(String word) {

//TODO: Complete this method

String reverse = "";

for (int i = (word.length()-1); i>=0; i--) {

if(word.charAt(i)!=' '){

reverse+=word.charAt(i);

}

String without_space = word.replaceAll(" ", "");

return reverse.equals(without_space);

}

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MrRoyal MrRoyal · Answer 2 · 2022-01-20T13:29:21+01:00

Methods are collections of named code blocks, that are executed when called or evoked.

The isPalindrome method written in Java, where comments are used to explain each line is as follows

//This defines the method

public static boolean isPalindrome(String word) {

//This removes all the spaces in the word

String newStr = word.replaceAll(" ", "");

//This initializes an empty string

String rev = "";

//This iterates through the word, in reverse order

for (int i = (word.length()-1); i>=0; i--) {

//This gets all the characters in the string (without the space)

if(word.charAt(i)!=' '){

rev+=word.charAt(i);

}

//This returns true or false

return reverse.equals(newStr);

}