How to create a form inside a drupal module?

I was searching online for a tutorial to create a form which is displyaed on a page, Shall we display a form inside a module as we display content using module and block? Since I am new to drupal I do not have an idea about drupal form. I downloaded and installed the example form module. But I do not know where this form will get displayed. I downloaded it from here http://drupal.org/node/1121110

It's not that complicated even if you are new to drupal. All I had to do in this example is using hook_menu() and knowing available form items from drupal form api reference.

Below is an example for what you're trying to do.

/**
 * Implementation of hook_menu()
 */
function mymodule_menu()
{
    $items = array();

    $items['my-custom-page-path'] = array(
        'title'             => 'My Page Title',
        'description'       => t(''),
        'access callback'   => 'user_access',
        'access arguments'  => array('access content'),
        'page callback'     => 'drupal_get_form',
        'page arguments'    => array('mymodule_form_id'),
    );

    return $items;
}

function mymodule_form_id($form, &$form_state)
{
    $form = array();

    $form['my_textfield'] = array(
        '#type'         => 'textfield',
        '#title'        => t('Text Field'),
        '#description'  => t(''),
        '#weight'       => 20,
        '#required'     => TRUE,
        '#size'         => 5,
        '#maxlength'    => 5,
    );

    $form['submit'] = array(
        '#type'         => 'submit',
        '#value'        => t('Save settings'),
        '#weight'       => 10000,
    );

    return $form;
}

/**
* Form validation callback
*/
function mymodule_form_id_validate($form, &$form_state)
{
    // notice adding "_validate" to the form id
}

/**
* Form submission callback
*/
function mymodule_form_id_submit($form, &$form_state)
{
    // notice adding "_submit" to the form id
}