Reverse the integer - Java & Python

Pthon:

a =2356
num = 0
while(a!=0):
num = (num*10)+(a%10)
 a=a//10
print(num)


Java:

 public class test1123 {


    public static void main(String[] args) {

        int a =3221;
        int num=0;

        while(a!=0) {
            num = (num*10) + (a % 10);
            a = a / 10;
        }
        System.out.println(num);
    }

}

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