Question

Print unique number in an array.

				
					(A Unique number is a positive integer (without leading zeros) with no duplicate digits. For example 7, 135, 214 , 5243 are all unique numbers whereas 33, 3121, 200 are not.)

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Code

				
					import java.util.Scanner;
public class UniqueNumberInArray
{  
    public static void main(String[] args)
    {  
        /* Initialize array */  
        int [] arr;
       
        int n=0,i=0,j=0,flag=0,count=0,r=0,temp=0;
        Scanner sc = new Scanner(System.in);    
        
        System.out.println("Enter a number of elements in the array");   
        n = sc.nextInt(); 
        arr=new int[n];
        System.out.println("Enter numbers in array");
        
        for(i=0;i< n;i++)
        {
           arr[i]=sc.nextInt();
        }
        
       /* printing unique elements in an array */
        System.out.println("unique Elements in an array");
        for(i=0;i< n;i++)
        {
            for(j=0;j<=9;j++)
        {
            temp=arr[i];
            count=0;
            flag=0;
            while(temp>0)
            {
                r=temp%10;
                if(r==j)
                /* if any digits are repeated, then it is not a UniqueNumber*/

                { 
                    count=count+1;
                }
                temp=temp/10;
            }
            if(count>1)
            {
                
                flag=1;
                break;
            }

        }

        if(flag ==0)
        {
            System.out.println(arr[i]+" ");
        }
        
        }
          
       
    }  
}