Question

4.30 Draw a Custom Full Arrow

This program outputs an upwards facing arrow composed of a rectangle and a triangle. The arrow characters used to draw the base and head are characters specified by the user. The dimensions are defined by user as well, specified as arrow base height, arrow base width, and arrow head width.

Create a program to output an arrow that reads in the respective characters and values in a java format. Perform sanity checking on numeric inputs, e.g., accept an arrow head width that is equal or larger than the arrow base width. Use a loop to continue prompting the user for an arrow head width until the value is correct. Don't forget to comment your code!: Example:

Enter a character for the base:
|
Enter arrow base height:
3
Enter odd arrow base width:
3
Enter a character for the head:
*
Enter odd arrow head width:
3

 *
***
|||
|||
|||

Answer 1

Hi,

Please go through code and output.

CODE:

#include <stdio.h>

int main()

{

int height=0, width=0, headWidth=0;

char base, head;

int i=0,j=0;

/* take data from user */

printf("Enter a character for the base: \n");

scanf("%c",&base);

HIGHT:

printf("Enter arrow base height: \n");

scanf("%d",&height);

if(height <= 0)

{

printf("Value is worng\n");

goto HIGHT;

}

WIDTH:

printf("Enter odd arrow base width:\n");

scanf("%d",&width);

if(width <= 0)

{

printf("Value is worng\n");

goto WIDTH;

}

printf("Enter a character for the head: \n");

scanf(" %c",&head);

HEADWIDTH:

printf("Enter odd arrow head width: \n");

scanf("%d",&headWidth);

if(headWidth <= 0 || headWidth%3 !=0)

{

printf("Value is worng\n");

goto HEADWIDTH;

}

/* print head */

printf(" *");

for(i=0; i<=headWidth; i=i*3)

{

for(j=i;j>0; j--)

{

printf("%c",head);

}

printf("\n");

i++;

}

/*print base */

for(i=0; i<height; i++)

{

for(j=0; j<width; j++)

printf("%c",base);

printf("\n");

}

}

OUTPUT;

Enter a character for the base: Enter arrow base height: Enter odd arrow base width: Enter a character for the head: Enter odd arrow head width: * *** 111