How to observe if divulge is palindrome inward Java
Checking whether a divulge is palindrome or non is a classical Java homework exercise. When you lot showtime learning Java programming well-nigh establish which instruct Java programming provides these classical Java programs similar How to observe Armstrong divulge inward Java or how to observe Fibonacci divulge inward Java using recursion etc. Write a Java programme to banking enterprise agree if divulge is palindrome comes from same category. For those who are non familiar alongside palindrome numbers, palindrome divulge is a divulge which is equal to contrary of itself. For event 121 is a palindrome because contrary of 121 is 121, piece 123 is non a palindrome inward Java because contrary of 123 is 321 together with 121!=321. Finding palindrome divulge is tardily inward Java, you lot simply necessitate to prepare logic to contrary a divulge inward Java. Thankfully Java provides distich of arithmetics operators similar remainder(%) operator too known equally modules operator, which returns residue inward partition operator together with partition operator(/) which returns quotient. By using residue together with partition operator inward Java nosotros tin hit programme to banking enterprise agree if divulge is palindrome or not.
Java programme – palindrome numbers inward Java
Here is a consummate Java programme to banking enterprise agree if a given divulge is palindrome or not, This programme industrial plant for both positive together with negative numbers together with display if its palindrome irrespective of at that spot sign. Any 1 digit divulge including nix is ever palindrome. This programme is able to banking enterprise agree 2 digit , 3 digit numbers for palindrome together with effective acquire to whatsoever divulge inward Java. Let’s come across how to write Java programme to observe palindrome numbers : package testing;
import java.util.Scanner;
import java.util.Scanner;
/**
* Java programme to banking enterprise agree if divulge is palindrome or not.
* Influenza A virus subtype H5N1 divulge is called palindrome if divulge together with its contrary is equal
* This Java programme tin too live on used to contrary a divulge inward Java
*/
public class NoClassDefFoundErrorDueToStaticInitFailure {
public static void main(String args[]){
System.out.println("Please Enter a divulge : ");
int palindrome = new Scanner(System.in).nextInt();
if(isPalindrome(palindrome)){
System.out.println("Number : " + palindrome + " is a palindrome");
}else{
System.out.println("Number : " + palindrome + " is non a palindrome");
}
}
/*
* Java method to banking enterprise agree if divulge is palindrome or not
*/
public static boolean isPalindrome(int number) {
int palindrome = number; // copied divulge into variable
int contrary = 0;
while (palindrome != 0) {
int residue = palindrome % 10;
contrary = contrary * 10 + remainder;
palindrome = palindrome / 10;
}
// if master copy together with contrary of divulge is equal means
// divulge is palindrome inward Java
if (number == reverse) {
return true;
}
return false;
}
}
Output:
Please Enter a divulge :
123
Number : 123 is non a palindrome
Please Enter a divulge :
121
Number : 123 is a palindrome
* Java programme to banking enterprise agree if divulge is palindrome or not.
* Influenza A virus subtype H5N1 divulge is called palindrome if divulge together with its contrary is equal
* This Java programme tin too live on used to contrary a divulge inward Java
*/
public class NoClassDefFoundErrorDueToStaticInitFailure {
public static void main(String args[]){
System.out.println("Please Enter a divulge : ");
int palindrome = new Scanner(System.in).nextInt();
if(isPalindrome(palindrome)){
System.out.println("Number : " + palindrome + " is a palindrome");
}else{
System.out.println("Number : " + palindrome + " is non a palindrome");
}
}
/*
* Java method to banking enterprise agree if divulge is palindrome or not
*/
public static boolean isPalindrome(int number) {
int palindrome = number; // copied divulge into variable
int contrary = 0;
while (palindrome != 0) {
int residue = palindrome % 10;
contrary = contrary * 10 + remainder;
palindrome = palindrome / 10;
}
// if master copy together with contrary of divulge is equal means
// divulge is palindrome inward Java
if (number == reverse) {
return true;
}
return false;
}
}
Output:
Please Enter a divulge :
123
Number : 123 is non a palindrome
Please Enter a divulge :
121
Number : 123 is a palindrome
That’s all on how to banking enterprise agree if a divulge is palindrome or non inward Java. If you lot are looking respond of this interrogation for interview role therefore meliorate hit a recursive version of palindrome programme inward Java equally good because its mutual exercise that programmer are expected to write coffee programme using both recursion together with iteration inward Java. Let me know if you lot observe whatsoever other way of checking palindrome inward Java.
Further Learning
Data Structures together with Algorithms: Deep Dive Using Java
How to contrary String inward Java without using API
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