triangle1.java

// Java Program to print the given pattern 
import java.util.*; // package to use Scanner class 
class triangle1 { 
	public static void main(String[] args) 
	{ 
		Scanner sc = new Scanner(System.in); 
		System.out.println("Enter the number of rows to be printed"); 
		int rows = sc.nextInt(); 
        int number=1;
		// loop to iterate for the given number of rows 
		for (int i = 1; i <= rows; i++) { 

			// loop to print the number of spaces before the star 
			for (int j = rows; j >= i; j--) { 
				System.out.print(" "); 
			} 

			// loop to print the number of stars in each row 
			for (int j = 1; j <= i; j++) { 
				System.out.print(number+"  "); 
				number++;
			} 

			// for new line after printing each row 
			System.out.println(); 
		} 
	} 
}