{"id":10331,"date":"2022-07-12T04:00:58","date_gmt":"2022-07-12T04:00:58","guid":{"rendered":"http:\/\/fastbitlab.com\/?p=10331"},"modified":"2023-08-26T14:05:27","modified_gmt":"2023-08-26T08:35:27","slug":"microcontroller-embedded-c-programming-lecture-69-scanf-exercise-implementation","status":"publish","type":"post","link":"https:\/\/fastbitlab.com\/blog\/microcontroller-embedded-c-programming-lecture-69-scanf-exercise-implementation\/","title":{"rendered":"Microcontroller Embedded C Programming Lecture 69| Scanf exercise implementation"},"content":{"rendered":"
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 <\/p>\n<\/div>\n

\n

Scanf exercise implementation<\/strong><\/span><\/h1>\n
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 <\/p>\n

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 <\/p>\n<\/div>\n<\/div>\n<\/div>\n

Exercise:<\/strong><\/span><\/p>\n

Write a Program which takes 6 characters (alphabets, numbers, and special characters) from the user and prints the ASCII codes of the entered characters.<\/span><\/p>\n

 <\/p>\n

First,  create variables.<\/span><\/span><\/p>\n

char c1, c2, c3, c4, c5, c6;<\/b><\/span> \/\/These are the variables to hold those characters.<\/span><\/span><\/span><\/p>\n

After that, use the printf to send the message to the user.<\/span><\/span><\/p>\n

printf(\u201cEnter any 6 characters of your choice:\u201d);<\/b><\/span><\/p>\n

And after that, let’s use scanf to read the inputs. We are going to read 6 inputs, so 6 characters. The format specifier will be %c. Let’s give space after one format specifier. I mentioned the 6 format specifier here. After that &c1,&c2,&c3,&c4,&c5,&c6.<\/span>
\nscanf(\u201c%c %c %c %c %c %c\u201d, &c1,&c2,&c3,&c4,&c5,&c6);<\/strong><\/span><\/p>\n

After that, let’s print the ASCII codes. ASCII code is a number, so which format specifier do you use to print a number. You can use <\/span>%d<\/b> (for signed integers) or <\/span>%u<\/b>(if it is unsigned). So, I can use %d or %u here, but I would use %u here because, anyway the codes are they are unsigned numbers.<\/span><\/span><\/p>\n

Let me give \\n at the beginning, type ASCII codes, and give the format specifier %u 6 times. After that, let’s print the value of these variables.<\/span><\/p>\n

Printf(\u201c\\nASCII codes : %u,%u,%u,%u,%u,%u\u201d,c1,c2,c3,c4,c5,c6);<\/b><\/span><\/p>\n

The code is shown below.<\/span><\/p>\n

#include<stdio.h>\r\n\r\nint main(void)\r\n{\r\n\r\nchar c1,c2,c3,c4,c5,c6;<\/span>\r\nprintf(\"Enter any 6 characters of your choice :\");<\/span>\r\nscanf(\"%c %c %c %c %c %c\",&c1,&c2,&c3,&c4,&c5,&c6);<\/span>\r\nprintf(\"\\nASCII codes : %u,%u,%u,%u,%u,%u\",c1,c2,c3,c4,c5,c6);<\/span>\r\n\r\nprintf(\"\\nPress enter key to exit the application \\n\");\r\nwhile(getchar() != '\\n')\r\n{\r\n\/\/just read the input buffer and do nothing\r\n}\r\ngetchar();\r\n\r\n}<\/pre>\n
 <\/p>\n
 <\/p>\n
Output:<\/strong><\/span><\/p>\n
\"Scanf
Figure 1. Output<\/span><\/figcaption><\/figure>\n
 <\/p>\n
Enter any 6 characters of your choice, and I entered <\/span>a<\/b> space, <\/span>b<\/b> space, <\/span>c<\/b> space, <\/span>d<\/b> space, <\/span>1<\/b> space, and <\/span>%<\/b> sign. Press Enter key. It shows the ASCII codes of the entered characters(Figure 1). So, this is the correct result.<\/span><\/span><\/p>\n
I want to give another assignment to you. So, modify this code. The output should be the same, but instead of using scanf use getchar(). <\/span> <\/span><\/span><\/p>\n
 <\/p>\n
FastBit Embedded Brain Academy Courses<\/b><\/span><\/p>\n
Click here:<\/span> <\/span><\/span>https:\/\/fastbitlab.com\/course1<\/span><\/a><\/span><\/p>\n
 <\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
  Scanf exercise implementation     Exercise: Write a Program which takes 6 characters (alphabets, numbers, and special characters) from the user and prints the ASCII codes of the entered characters.   First,  create variables. char c1, c2, c3, c4, c5, c6; \/\/These are the variables to hold those characters. After that, use the printf […]<\/p>\n","protected":false},"author":1,"featured_media":10334,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"0","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"off","ocean_gallery_id":[],"footnotes":""},"categories":[8],"tags":[16],"class_list":["post-10331","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-microcontroller-embedded-c-programming","entry","has-media"],"yoast_head":"\nExploring scanf and getchar: ASCII Code Printing Exercise in C<\/title>\n<meta name=\"description\" content=\"Learn how to use scanf and getchar in C programming with a practical exercise. 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