How to Generate 10 random numbers:
Hi, In C# programming we hav a method called Random where in code we write as follows
Random randno = new Random();
for(int i = 0; i < 10; i++)
{
int rand = randno.Next(1,10);
Response.Write(rand + " ");
}
for which the output will be as follows:
test output sample1:
1 7 4 8 2 8 2 4 6 1
test output sample2:
7 5 3 2 5 8 1 3 4 7
what we need is a CODE that generates only random numbers no repetitive numbers.
Hence a sample is given below to create 10 random numbers.
HTML CODE:
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button ID="Button1" runat="server" Text="Generate" OnClick="Button1_Click" /> <br />
<br />
<br />
<asp:ListBox ID="ListBox1" runat="server" Height="245px" Width="287px"></asp:ListBox></div>
</form>
</body>
</html>
C# CODE:
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
GenrateUniqueNumber();
}
public void GenrateUniqueNumber()
{
int[] arr = new int[10];
bool flag;
for (int i = 0; i < 10; i++)
{
Random random = new Random();
int randomNo = random.Next(1, 11);
flag = true;
for (int x = 0; x < arr.Length; x++)
{
if (randomNo == arr[x])
{
i--;
flag = false;
break;
}
}
if (flag)
arr[i] = randomNo;
}
Response.Write("Set of Ten Unique Random Numbers : </br>");
for (int z = 0; z < arr.Length; z++)
{
ListBox1.Items.Add((z + 1) + "-> " + arr[z].ToString());
}
}
Ouput :
Set 1:
Set 2:
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