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How to check Palindrome String in Java

We can check palindrome string by reversing string and checking whether it is equal to original string or not. Let's see the example code to check palindrome string in java.

File: PalindromeChecker.java

public class PalindromeChecker {
public static boolean isPalindrome(String str){
	StringBuilder sb=new StringBuilder(str);
	sb.reverse();
	String rev=sb.toString();
	if(str.equals(rev)){
		return true;
	}else{
		return false;
	}
}
}

File: TestPalindrome.java

public class TestPalindrome {
public static void main(String[] args) {
	System.out.println(PalindromeChecker.isPalindrome("nitin"));
	System.out.println(PalindromeChecker.isPalindrome("jatin"));
}
}

Output:

true
false

Next TopicJava String FAQs

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