Here is a code that displays the following pattern:

12345

1234

123

12

1

1

12

123

1234

12345

class Pattern 
{
    public static void main(String[] args) 
    {
        for(int i=5;i>=1;i--){
        for(int j=1;j<i+1;j++){
            System.out.print(j);
        }
        System.out.println();
        }
        for(int i=1;i<=5;i++){
            for(int j=1;j<=i;j++){
                System.out.print(j);
        }
         System.out.println();
        }

    }
}