Drawing a triangle in java.

Question:

A user provides a number and I need to draw a triangle using loops based on the users input:

This is what the output should look like:

Enter number: 5
x
xx
xxx
xxxx
xxxxx

Answer:

Use a nested for loop.

Code:

import java.util.Scanner;
 
public class Triangle {
   public static void main(String[] args) {
      Scanner sc = new Scanner(System.in);
      System.out.print("Enter number: ");
      int number = sc.nextInt();
      for (int i=1;i<=number;i++) { 
         for(int j=1; j<=i; ++j) {
            System.out.print("x");
         } 
         System.out.println();
      }
   }
}

Output:

$ java Triangle
Enter number: 10
x
xx
xxx
xxxx
xxxxx
xxxxxx
xxxxxxx
xxxxxxxx
xxxxxxxxx
xxxxxxxxxx