Right angle triangle program in java

Java program to print right angle triangle program .

import java.util.Scanner;
public class Pattern 
{

	public static void main(String[] args) 
	{
		int Number;
		Scanner input=new Scanner(System.in);
		System.out.print("enter rows:");
		Number=input.nextInt();
		input.close();
		for(int i=0;i <Number;i++)
		{
			for(int j=0;j <=i;j++)
			{
				System.out.print("*");
			}
			System.out.println("");
		}

	}
}

OUTPUT:
enter rows:4
*
**
***
****
-------------
enter rows:5
*
**
***
****
*****