reverse number in java
import java.util.*; class reverse { public static void main(String args[]) { Scanner sc = new Scanner(System.in); System.out.println("Enter String: "); String str = sc.next(); char d; String str2 = ""; int l = str.length(); for(int i = l-1; i >= 0; i--) { d = str.charAt(i); str2 = str2 + d; } System.out.println(str2); sc.close(); } }
reverse number in java
class Main { public static void main(String[] args) { int num = 1234, reversed = 0; System.out.println("Original Number: " + num); // run loop until num becomes 0 while(num != 0) { // get last digit from num int digit = num % 10; reversed = reversed * 10 + digit; // remove the last digit from num num /= 10; } System.out.println("Reversed Number: " + reversed); } }
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