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FormProcessing.java
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FormProcessing.java
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package com;
import java.util.regex.PatternSyntaxException;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
import javax.swing.*;
public class FormProcessing {
String name="Sam78@";
public FormProcessing() {
validate();
}
public void validate()
{
try
{
String validateString="([a-zA-Z]+)(@)";
Pattern p=Pattern.compile(validateString);
Matcher m=p.matcher(name);
if(m.matches())
{
JOptionPane.showMessageDialog(null,"valid name");
}
else
{
JOptionPane.showMessageDialog(null,"Invalid name");
}
}
catch(PatternSyntaxException er)
{
JOptionPane.showMessageDialog(null,er.getMessage());
}
}
/**
public static void main(String[] args) {
new FormProcessing();
}**/
}