In this Java program, you’ll learn how to Reverse a Number using Java programming language.
How to reverse a number?
Example 1: using for loop
[Maxbutton id=”1″ url=”https://coderseditor.com/?id=824″ text=”RUN CODE SNIPPET” ]
class Main {
public static void main(String[] args) {
int num = 123456789, reversed = 0;
for(;num != 0; num /= 10) {
int digit = num % 10;
reversed = reversed * 10 + digit;
}
System.out.println("Reversed Number: " + reversed);
}
}OUTPUT
Reversed Number: 987654321
Example 2: using while loop
RUN CODE SNIPPETclass Main {
public static void main(String[] args) {
int num = 123456789, reversed = 0;
while(num != 0) {
int digit = num % 10;
reversed = reversed * 10 + digit;
num /= 10;
}
System.out.println("Reversed Number: " + reversed);
}
}OUTPUT
Reversed Number: 987654321
