Answer to Question #255208 in Java | JSP | JSF for Silas Petrus

Question

Printing triangles: Write a program which inputs a positive integer n and outputs an n line high triangle of '*' characters whose right-angle is in the bottom left corner. For example, if 5 is input the output should be

Sample Run1

Enter a positive integer: 5

Output1:

*

**

***

****

*****

Answer 1

import java.util.Scanner;


public class App {
	/**
	 * The start point of the program
	 * 
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner keyBoard = new Scanner(System.in);
		System.out.print("Enter a positive integer: ");
		int n = keyBoard.nextInt();


		for (int i = 1; i <= n; i++) {
			for (int j = 0; j < i; j++) {
				System.out.print("*");
			}
			System.out.print("\n");
		}
		keyBoard.close();


	}


}