Print Series 1, 12, 123, 1234, …………n in Java.

import java.util.Scanner;
public class Series 
{
 public static void main(String args[]) 
 {
  Scanner sc = new Scanner(System.in);
  System.out.print("Enter the number of terms: ");
  int n = sc.nextInt();
  int s = 0, c;                       // s for terms of series, c for counter to generate n terms
  for (c = 1; c <= n; c++) {
   s = s * 10 + c;
   System.out.print(s + " ");
  }
 }
}


Output:
Enter the number of terms: 6
1,  12,  123,  1234,  12345,  123456....... 
BUILD SUCCESSFUL (total time: 3 seconds)