{"id":10234,"date":"2017-04-11T19:03:42","date_gmt":"2017-04-11T11:03:42","guid":{"rendered":"http:\/\/www.vbtutor.net\/?page_id=10234"},"modified":"2018-06-22T15:19:37","modified_gmt":"2018-06-22T07:19:37","slug":"visual-basic-2017-lesson-38-building-console-application-part-2","status":"publish","type":"page","link":"https:\/\/www.vbtutor.net\/index.php\/visual-basic-2017-lesson-38-building-console-application-part-2\/","title":{"rendered":"Visual Basic 2017 Lesson 38: Building A Console Application Part 2"},"content":{"rendered":"<h4 style=\"text-align: center;\"><a href=\"http:\/\/www.vbtutor.net\/index.php\/visual-basic-2017-lesson-37-building-console-application-part-1\/\">[Lesson 37]<\/a>&lt;&lt; <a href=\"http:\/\/www.vbtutor.net\/index.php\/visual-basic-2017-tutorial\/\">[Contents]<\/a><\/h4>\n<p>In this lesson, we shall learn how to create Visual Basic 2017 console applications using the <strong>If..Then&#8230;Else<\/strong> control structure and the <strong>Select Case<\/strong> control structure.<\/p>\n<h3>38.1 Using If&#8230;.Then&#8230;.Else<\/h3>\n<p>The \u00a0If&#8230;Then&#8230;.Else structure is as follows:<\/p>\n<p><b>If\u00a0 <\/b>conditions <b>Then<\/b><\/p>\n<p>VB expressions<\/p>\n<p><b>Else<\/b><\/p>\n<p>VB expressions<\/p>\n<p><b>End If<\/b><\/p>\n<p><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<ins class=\"adsbygoogle\" style=\"display: block; text-align: center;\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\" data-ad-client=\"ca-pub-3033628290023372\" data-ad-slot=\"3393818013\"><\/ins><br \/>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/p>\n<h4>Example 38.1<\/h4>\n<p>The following code uses If&#8230;.Then&#8230;.Else control structure to evaluate the answer entered by the user.<\/p>\n<pre style=\"font-size: 110%;\">Sub Main()\r\nDim x, y, z, total As Single\r\nDim firstnum As String\r\nDim secondnum As String\r\nDim sum As String\r\nfirstnum = InputBox(\"Enter a Number\")\r\nsecondnum = InputBox(\"Enter a number\")\r\nsum = InputBox(\"The answer is\")\r\ntotal = Val(firstnum) + Val(secondnum)\r\nIf total = Val(sum) Then\r\nMsgBox(\"Correct\")\r\nElse\r\nMsgBox(\"Wrong\")\r\nEnd If\r\nEnd Sub\r\n<\/pre>\n<p>When we run the application, you will be presented with an input box as shown in Figure 38.1<\/p>\n<p><a href=\"https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8525\" src=\"https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.1.jpg\" alt=\"figure38.1\" width=\"353\" height=\"158\" srcset=\"https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.1.jpg 353w, https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.1-300x134.jpg 300w\" sizes=\"auto, (max-width: 353px) 100vw, 353px\" \/><\/a><\/p>\n<p><strong>Figure 38.1<\/strong><\/p>\n<p>After entering a number, you will be presented a second input box where you are required to enter the second number. After that, you will be presented with a third input box that prompts you to enter the answer which supposes to be the sum of the two numbers entered, as shown in Figure 38.2<\/p>\n<p><a href=\"https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.1.2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8526\" src=\"https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.1.2.jpg\" alt=\"figure38.1.2\" width=\"358\" height=\"152\" srcset=\"https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.1.2.jpg 358w, https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.1.2-300x127.jpg 300w\" sizes=\"auto, (max-width: 358px) 100vw, 358px\" \/><\/a><\/p>\n<p><strong>Figure 38.2<\/strong><\/p>\n<p>If the answer is correct, a message box will display the word &#8216;Correct&#8217;, otherwise, it will show the word &#8216;Wrong&#8217;, as shown in Figure 38.3<\/p>\n<p><a href=\"https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.1.3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8527\" src=\"https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.1.3.jpg\" alt=\"figure38.1.3\" width=\"156\" height=\"148\" \/><\/a><\/p>\n<p><strong>Figure 38.3<\/strong><\/p>\n<p><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<ins class=\"adsbygoogle\" style=\"display: block; text-align: center;\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\" data-ad-client=\"ca-pub-3033628290023372\" data-ad-slot=\"3393818013\"><\/ins><br \/>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/p>\n<h3>38.2 Using Select Case<\/h3>\n<p>The Select Case control structure evaluates one expression for multiple values. Select Case is preferred when there exist multiple conditions.<\/p>\n<p>The Select Case control structure is shown below:<\/p>\n<p><span style=\"color: #000099;\">Select Case <\/span><span style=\"color: #000000;\">expression<\/span><\/p>\n<p><span style=\"color: #000099;\">Case<\/span><span style=\"color: #000000;\"> value1<\/span><br \/>\n<span style=\"color: #000000;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Block of one or more VB statements<\/span><br \/>\n<span style=\"color: #000000;\">\u00a0\u00a0<\/span><span style=\"color: #000099;\"> Case<\/span><span style=\"color: #000000;\"> value2<\/span><br \/>\n<span style=\"color: #000000;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Block of one or more VB Statements<\/span><br \/>\n<span style=\"color: #000000;\">\u00a0\u00a0 <\/span><br \/>\n<span style=\"color: #000000;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 .<\/span><br \/>\n<span style=\"color: #000000;\">\u00a0\u00a0<\/span><span style=\"color: #000099;\"> Case<\/span><span style=\"color: #000000;\"> Else<\/span><br \/>\n<span style=\"color: #000000;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Block of one or more VB Statements<\/span><\/p>\n<p><span style=\"color: #000099; font-family: Verdana;\">End Select<\/span><\/p>\n<h4>Example 38.2<\/h4>\n<p>This application allows the user to input an examination grade and it will display the result in a message box, as shown in the figures below:<\/p>\n<p><a href=\"https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8531\" src=\"https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.2.jpg\" alt=\"figure38.2\" width=\"355\" height=\"152\" srcset=\"https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.2.jpg 355w, https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.2-300x128.jpg 300w\" sizes=\"auto, (max-width: 355px) 100vw, 355px\" \/><\/a><\/p>\n<p><strong>Figure 38.4<\/strong><\/p>\n<p><a href=\"https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8532\" src=\"https:\/\/www.vbtutor.net\/wordpress\/wp-content\/uploads\/2016\/08\/figure38.3.jpg\" alt=\"figure38.3\" width=\"140\" height=\"148\" \/><\/a><br \/>\n<strong>Figure 38.5<\/strong><\/p>\n<h4>The Code<\/h4>\n<pre style=\"font-size: 100%;\">Sub Main()\r\n        Dim grade As String\r\n\r\n        grade = InputBox(\"Enter Grade A, A-, B,C,D\"\uff09\r\n        Select Case grade\r\n            Case \"A\"\r\n                MsgBox(\"High Distinction\")\r\n            Case \"A-\"\r\n                MsgBox(\"Distinction\")\r\n            Case \"B\"\r\n                MsgBox(\"Credit\")\r\n            Case \"C\"\r\n                MsgBox(\"Pass\")\r\n            Case Else\r\n                MsgBox(\"Fail\")\r\n        End Select\r\n    End Sub<\/pre>\n<p><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<ins class=\"adsbygoogle\" style=\"display: block;\" data-ad-format=\"autorelaxed\" data-ad-client=\"ca-pub-3033628290023372\" data-ad-slot=\"9961025909\"><\/ins><br \/>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/p>\n<h4 style=\"text-align: center;\"><a href=\"http:\/\/www.vbtutor.net\/index.php\/visual-basic-2017-lesson-37-building-console-application-part-1\/\">[Lesson 37]<\/a>&lt;&lt; <a href=\"http:\/\/www.vbtutor.net\/index.php\/visual-basic-2017-tutorial\/\">[Contents]<\/a><\/h4>\n","protected":false},"excerpt":{"rendered":"<p>[Lesson 37]&lt;&lt; [Contents] In this lesson, we shall learn how to create Visual Basic 2017 console applications using the If..Then&#8230;Else control structure and the Select Case control structure. 38.1 Using If&#8230;.Then&#8230;.Else The \u00a0If&#8230;Then&#8230;.Else structure is as follows: If\u00a0 conditions Then VB expressions Else VB expressions End If Example 38.1 The following code uses If&#8230;.Then&#8230;.Else control &hellip; <a href=\"https:\/\/www.vbtutor.net\/index.php\/visual-basic-2017-lesson-38-building-console-application-part-2\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Visual Basic 2017 Lesson 38: Building A Console Application Part 2<\/span><\/a><\/p>\n","protected":false},"author":23013,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-10234","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Visual Basic 2017 Lesson 38: Building A Console Application Part 2 - Learn Visual Basic Programming \u2013 VB.NET, VBA &amp; 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