Find all palindrome strings in a java array.

In this article, we will see how to find all palindrome strings from an array. This is a very frequently asked questions in interview.  Also there is a question to find all palindrome number from an array.  Find few more collection interview question.  


PalindromeStrings.java

package com.javadevelopersguide.lab.basic;
/**
 * This program illustrates find all palindrome strings from array.
 *
 * @author manoj.bardhan
 *
 */
public class PalindromeStrings {
public static void main(String[] args) {
String stringArray[] = { "eye", "jdg", "javadevelopersguide", "aabaa", "hello", "pip" };
for (int i = 0; i < stringArray.length; i++) {
printOnlyPalindrom(stringArray[i]);
}
}
private static void printOnlyPalindrom(String str) {
String oldString = str;
StringBuilder builder = new StringBuilder(str);
if (builder.reverse().toString().equals(oldString)) {
System.out.println(oldString + " is a Palindrome.");
}
}
}

Output -

eye is a Palindrome String.
aabaa is a Palindrome String.
pip is a Palindrome String.

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