Wordpress - how to remove default jquery and add js in footer?

This will do the trick when added to your functions file:

if (!is_admin()) add_action("wp_enqueue_scripts", "my_jquery_enqueue", 11);
function my_jquery_enqueue() {
   wp_deregister_script('jquery');
   wp_register_script('jquery', "//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js", false, null);
   wp_enqueue_script('jquery');
}

I am searching I get one blog here I get two different code. one for

Remove Default Jquery In Wordpress

Here I am the same code for below

<?php
  function myphpinformation_scripts() {    
    if( !is_admin() ) {
      wp_deregister_script( 'jquery' );
      wp_register_script( 'jquery', get_stylesheet_directory_uri() . '/js/jquery.min.js', false );
      wp_enqueue_script( 'jquery' );
    }
  }

  add_action( 'wp_enqueue_scripts', 'myphpinformation_scripts' );
?>

Add Jquery In Footer In Wordpress

here I know how to add js in WordPress in the footer. I think removing default jquery and add js in the footer in WordPress is a different question.

Here I can found that

<?php
  function myphpinformation_scripts() {    
    wp_enqueue_script( 'scroll', get_stylesheet_directory_uri() . '/js/script.js',array('jquery'),'',true);
  }

  add_action( 'wp_enqueue_scripts', 'myphpinformation_scripts' );
?>