Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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i need life cycle and comments on these codes
(example: int x; // declare x ; )
VB Code
Imports System
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
Imports System.Linq
Imports System.Text
Imports System.Threading.Tasks
Imports System.Windows.Forms
Namespace Student
Public Partial Class Form1
Inherits Form
Public Sub New()
InitializeComponent()
End Sub
Private Sub btnCalculatePerc_Click(ByVal sender As Object, ByVal e As EventArgs)
txtPercentage.Text = ((Convert.ToInt32(txtMark1.Text) + Convert.ToInt32(txtMark2.Text) + Convert.ToInt32(txtMark3.Text)) / 3).ToString()
End Sub
Private Sub btnDisplayGrade_Click(ByVal sender As Object, ByVal e As EventArgs)
If Convert.ToDouble(txtPercentage.Text) >= 80 Then
txtLevel.Text = "Excellent"
ElseIf Convert.ToDouble(txtPercentage.Text) >= 70 AndAlso Convert.ToDouble(txtPercentage.Text) <= 79 Then
txtLevel.Text = "Very Good"
ElseIf Convert.ToDouble(txtPercentage.Text) >= 60 AndAlso Convert.ToDouble(txtPercentage.Text) <= 69 Then
txtLevel.Text = "Good"
ElseIf Convert.ToDouble(txtPercentage.Text) >= 50 AndAlso Convert.ToDouble(txtPercentage.Text) <= 59 Then
txtLevel.Text = "Satisfactory"
ElseIf Convert.ToDouble(txtPercentage.Text) < 50 Then
txtLevel.Text = "Fail"
End If
End Sub
End Class
End Namespace
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