Alternate 1s' and 0s' Pattern

import java.util.Scanner;
class Input{
    int getInput(String prompt){
        System.out.print(prompt);
        Scanner sc = new Scanner(System.in);
        if(!sc.hasNextInt())
            System.out.println("Enter a whole number.");
        else return sc.nextInt();
        return 0;
    }
}
class PatternOne{
    public static void main(String args[]){
        int n = new Input().getInput("Enter the number of rows:  ");
        for(int i = 0; i < n; i++){
            for(int j = 0; j <= i; j++){
                if((i+j+1)%2 == 0) System.out.print(0);
                else System.out.print(1);
            }
            System.out.println();
        }
    }
}
/*Output:-
Enter the number of rows:  5
1
01
101
0101
10101 */