testng_parallel.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd">
 <suite parallel="classes" name="Suite">
    <test thread-count="5" parallel="classes" name="Test">
        <groups>
            <run>
                <exclude name="skipGroup" />
                <!-- Add specific groups to include or remove this line if no groups to include -->
                <!-- <include name="groupName" /> -->
            </run>
        </groups>
        <classes>
            <class name="SeleniumCodeSDET.SDETCode.JavaScriptExecutorCode" />
            <class name="SeleniumCodeSDET.SDETCode.BrokenLink" />
            <class name="SeleniumCodeSDET.SDETCode.ChatGPTCode_1" />
            <class name="SeleniumCodeSDET.SDETCode.MultipleWindow" />
            <class name="SeleniumCodeSDET.SDETCode.HandleAlerts" />
            <class name="SeleniumCodeSDET.SDETCode.WebDriverWaitCode" />
        </classes>
    </test>
</suite>