Java Verification Code Program

1. Design Ideas

Implementation of programs using random and for loops

2. Flowchart

3. Source code

Import Javax.swing.JOptionPane;
public class Jiemiansheji
{
public static void Main (string[] args)
{

String result = "";

for (int i = 0; i < 6; i + +)
{

int intval = (int) (Math.random () * 26 + 97);

result = result + (char) intval;
}

String str;
Str=joptionpane.showinputdialog ("Input verification code \ n" +result);
if (str.equals (Result))
{
Joptionpane.showmessagedialog (NULL, "verified success", "", joptionpane.plain_message);
}
Else
{
Joptionpane.showmessagedialog (NULL, "Validation failed", "", joptionpane.plain_message);



}
}
}

4. Experiment

5. Experimental summary

The random verification code was successfully generated by Internet query and courseware code, and the program was successfully run.

Java Verification Code Program