Java program to pass an integer as argument and check whether all digits in it are unique or not

Write a program to pass an integer as argument, and check whether all digits in it are unique or not.

class Unique
{
	public static void main(int n)
	{
		int i,s=0,c=0,d,j,d1,f=0;
		for(i=n;i>0;i=i/10)
		{
			d1=i%10;
			for(j=i/10;j>0;j=j/10)
			{
				d=j%10;
				if(d==d1)
					f=1;
			}
		}
		if(f==0)
			System.out.println(“All digits are unique”);
		else
			System.out.println(“All digits are not unique”);
	}
}