Was asked for an algorithm to reverse integers, given 123 output would be 321. Cannot use string or char methods.

Question

Was asked for an algorithm to reverse integers, given 123 output would be 321.  Cannot use string or char methods.

Anonymous · Accepted Answer

public int reverse(int x) {
    int rev = 0;
    while(x != 0){
        rev = rev*10 + x%10;
        x = x/10;
    }
 
    return rev;
}

Jet