Stepping Number

In this program we are given with an long integer, if difference of adjacent digit is 1, then it is a stepping number else return -1

	import java.util.*;
	public class HackerRank {
	public static int steppingNumber(int input1)
	{
	//Write code here
	int result=0;
	int i=0,remainder=0;
	String num=String.valueOf(input1);
	int [] arr=new int [num.length()];
	while(input1>0){ //converting integer to integer array
	remainder=input1%10;
	arr[i]=remainder;
	input1=input1/10;
	i++;
	}
	int f=0,g=1,x,y;
	do{
	x=arr[f];
	y=arr[g];
	if((x-y)==1||(y-x)==1){ //to find whether is stepping number or not
	result=1;
	f++;
	g++;
	}
	else {
	result=-1;
	break;
	}
	}while(g<arr.length);
	return result;
	}
	public static void main(String[] args) {
	Scanner in = new Scanner(System.in);
	int output = 0;
	int ip1 = Integer.parseInt(in.nextLine().trim());
	output = steppingNumber(ip1);
	System.out.println(String.valueOf(output));
	in.close();
	}
	}

view raw SteppingNumbers hosted with ❤ by GitHub

Input: 123

Output: 1

Input: 890

Output: -1