For this solution make sure you change the formatting on your answer to "Preformatted". We will NOT be grading you on formatting, but it will make the grader's life easier.Copy the skeleton of code below into your answer. Then in the space indicated, add your own code to prompt the user for a number. If the number is greater than 0 it should print a triangle of that size as shown below. If the number is less than or equal to 0 it should print nothing. See the transcripts below for some sample runs of this code: Enter a number: 3******A second run of this program with different input might look like this:Enter a number: 5***************A third run of this program with a zero or negative input might look like this:Enter a number: -12Use the skeleton of the main method below to write your code.public static void main(String[] args) { Scanner input = new Scanner(System.in); // TODO: Your code below this line input.close();}
Question
For this solution make sure you change the formatting on your answer to "Preformatted". We will NOT be grading you on formatting, but it will make the grader's life easier.Copy the skeleton of code below into your answer. Then in the space indicated, add your own code to prompt the user for a number. If the number is greater than 0 it should print a triangle of that size as shown below. If the number is less than or equal to 0 it should print nothing. See the transcripts below for some sample runs of this code: Enter a number: 3A second run of this program with different input might look like this:Enter a number: 5*********A third run of this program with a zero or negative input might look like this:Enter a number: -12Use the skeleton of the main method below to write your code.public static void main(String[] args) { Scanner input = new Scanner(System.in); // TODO: Your code below this line input.close();}
Solution
Here is the code you requested:
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
// TODO: Your code below this line
System.out.print("Enter a number: ");
int num = input.nextInt();
if (num > 0) {
for (int i = 0; i < num; i++) {
for (int j = 0; j <= i; j++) {
System.out.print("*");
}
System.out.println();
}
}
input.close();
}
}
This code first prompts the user to enter a number. If the number is greater than 0, it prints a triangle of asterisks of the size entered by the user. If the number is less than or equal to 0, it does not print anything.
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