How to find reverse number using method in Java

How to find reverse number using method

In this article, we will discuss the concept of the How to find reverse number of given number using method

In this post, we are going to learn how to find reverse of the given number in Java programming language

Code to reverse a number using the loop

Reverse a number using method in Java using for loop

The program allows the user to enter a number and then it displays the reverse number of the given number using for loop in Java language

Program 1

import java.util.Scanner;
class Reversed_Num_Method{//class declaration
    static int reversed_Num=0;//global variable
public static void main(String args[]){
int number;//local variable
Scanner scan=new Scanner(System.in);
//This statements takes input from theuser
System.out.print("Enter the number for find reverse: ");
//get input and it is stored num variable
number=scan.nextInt();
System.out.print("Reversed number of given number is: "+find_Reserve(number));
//call the method and display result
}
public static int find_Reserve(int number){//user-defined method
for( ; number!=0;){
reversed_Num=reversed_Num*10;
reversed_Num=reversed_Num+number%10;
number=number/10;
}
return reversed_Num;//return the result to main method
}
}

When the above code is executed, it produces the following result

Reverse a number using method in Java using while loop

The program allows the user to enter a number and then it displays the reverse number of the given number using while loop in Java language

Program 2

import java.util.Scanner;
class Reversed_Num_Methodwhile{//class declaration
    static int reversed_Num=0;//global variable
public static void main(String args[]){
int number;//local variable
Scanner scan=new Scanner(System.in);
//This statements takes input from theuser
System.out.print("Enter the number for find reverse: ");
//get input and it is stored num variable
number=scan.nextInt();
System.out.print("Reversed number of given number is: "+find_Reserve(number));
//call the method and display result
}
public static int find_Reserve(int number){//user-defined method
int rem;
while(number>0){
    rem=number%10;
    reversed_Num=reversed_Num*10+rem;
    number=number/10;
}
return reversed_Num;//return the result to main method
}
}

When the above code is executed, it produces the following result

Reverse a number using method in Java using do-while loop

The program allows the user to enter a number and then it displays the reverse number of the given number using do-while loop in Java language

Program 3

import java.util.Scanner;
class Reversed_Num_Methoddowhile{//class declaration
    static int reversed_Num=0;//global variable
public static void main(String args[]){
int number;//local variable
Scanner scan=new Scanner(System.in);
//This statements takes input from theuser
System.out.print("Enter the number for find reverse: ");
//get input and it is stored num variable
number=scan.nextInt();
System.out.print("Reversed number of given number is: "+find_Reserve(number));
//call the method and display result
}
public static int find_Reserve(int number){//user-defined method
int rem;
do{
    rem=number%10;
    reversed_Num=reversed_Num*10+rem;
    number=number/10;
}while(number>0);
return reversed_Num;//return the result to main method
}
}

When the above code is executed, it produces the following result

 

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