Question

In Java, given two input integers for an arrowhead and arrow body, print a right-facing arrow.

a) Define the input parameters and their significance in the context of creating a right-facing arrow in Java.
b) Instruct the respondent to develop a Java program that takes two input integers for arrowhead and arrow body lengths and prints a right-facing arrow.
c) Encourage the inclusion of comments or explanations within the code to enhance clarity and understanding.

Ensure a comprehensive implementation of the Java program for creating a right-facing arrow and request explanations or comments to facilitate understanding.

Answer 1

In Java, two input integers are used to determine the lengths of the arrowhead and arrow body to draw a right-facing arrow. A Java program prompts the user for these lengths and prints the arrow using asterisks to represent arrow parts.

Step-by-step explanation:

In Java, when creating a right-facing arrow, the two input integers are significant because they determine the lengths of the arrowhead and the arrow body. The first integer represents the length of the arrowhead, while the second integer represents the length of the arrow body, which consists of a straight line.

Java Program for Creating a Right-Facing Arrow

Below is a simple Java program that uses two input integers:

import java.util.Scanner;

public class RightFacingArrow {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter arrowhead length: ");
int arrowHead = scanner.nextInt();
System.out.print("Enter arrow body length: ");
int arrowBody = scanner.nextInt();

// Drawing arrowhead
for(int i = 1; i <= arrowHead; i++) {
for(int j = 0; j < i; j++) {
System.out.print("*"); // Each star represents a block of the arrowhead
}
System.out.println();
}

// Drawing arrow body
for(int i = 0; i < arrowBody; i++) {
System.out.println("*"); // The star represents a block of the arrow body
}

// Completing the arrowhead
for(int i = arrowHead - 1; i > 0; i--) {
for(int j = 0; j < i; j++) {
System.out.print("*");
}
System.out.println();
}
scanner.close();
}
}

The program starts by prompting the user for the lengths of the arrowhead and the arrow body and then proceeds to draw the arrow on the console.