Nijjwal nijjwal

## java-tutorial-for-beginners.java
This is my Java note from caveofprogramming.com by John.
This is not a program.
All credit goes to John.
/*
|----------------------------------------
|Ten tips to make you a better programmer.
|----------------------------------------
*/
10. Learn to touch type.
9. Name variables and subroutines descriptively

## collection-java-tutorial.java
//This is my note for Java Collection Framework course taught by John.
//Original credit: John from caveofprogramming.com
//All of his videos can be found in youtube.com
/**---------------------------------
| 1. ArrayList
|
*/---------------------------------

1.
-ArrayList class implements the class that is expandable.

## functions.js
<script>
/*
Have the function RunLength(str) take the str parameter being passed
and return a compressed version of the string using the Run-length
encoding algorithm. This algorithm works by taking the occurrence of
each repeating character and outputting that number along with a single
character of the repeating sequence. For example: "wwwggopp" would return
3w2g1o2p. The string will not contain any numbers, punctuation, or symbols.
*/

## disable-enter-key.html
<!DOCTYPE html>
<html>
<head>
	<title>Disable Key in JavaScript</title>
	<script>
		function noenter(e) {
			//1. window is an object that represents an open window in a browser.

			//2. event is an action that can be detected by javascript.
			//Sometimes we want to execute a JavaScript when an event

## PrivateRoute.js
//Code for PrivateRoute.js

import React from "react";

import {  Navigate } from "react-router-dom";
import { useAuth } from "../contexts/AuthContext";

export default function PrivateRoute({ children }) {
  const { currentUser } = useAuth();

## useContext-App.js
import { useContext, createContext } from "react";

const moods = {
  happy: ':)',
  sad: ':('
};

const MoodContext = createContext(moods);

function App() {

## Signup.js
import React, { useState } from 'react'

export default function Signup() {

  const people = [{name:'Jamie', age:37, id:1},{name:'Tyrion', age:36, id:2}];
  const [users, updateUser] = useState(people);

  //For Printing in cosole
  people.map((person)=>{
    console.log(person.name)

## sql-vulnerable-code-pdo.php
<?php

//This class helps to connect to the

class Connection{
	public function connect()
	{
		return new PDO('mysql:host=localhost; dbname=sqlinjection2','root','root');
	}
}

## sql-vulnerable-code-pdo.php
<?php

require 'pdo.php';

//1. Create an instance of connection
$pdo_obj = new Connection();


//2. Connect to the server + db
try

## sql-injection-safe.php
<?php

require 'pdo.php';

//1. Create an instance of connection
$pdo_obj = new Connection();


//2. Connect to the server + db
try
	This is my Java note from caveofprogramming.com by John.
	This is not a program.
	All credit goes to John.
	/*
	\|----------------------------------------
	\|Ten tips to make you a better programmer.
	\|----------------------------------------
	*/
	10. Learn to touch type.
	9. Name variables and subroutines descriptively
	//This is my note for Java Collection Framework course taught by John.
	//Original credit: John from caveofprogramming.com
	//All of his videos can be found in youtube.com
	/**---------------------------------
	\| 1. ArrayList
	\|
	*/---------------------------------

	1.
	-ArrayList class implements the class that is expandable.
	<script>
	/*
	Have the function RunLength(str) take the str parameter being passed
	and return a compressed version of the string using the Run-length
	encoding algorithm. This algorithm works by taking the occurrence of
	each repeating character and outputting that number along with a single
	character of the repeating sequence. For example: "wwwggopp" would return
	3w2g1o2p. The string will not contain any numbers, punctuation, or symbols.
	*/
	<!DOCTYPE html>
	<html>
	<head>
	<title>Disable Key in JavaScript</title>
	<script>
	function noenter(e) {
	//1. window is an object that represents an open window in a browser.

	//2. event is an action that can be detected by javascript.
	//Sometimes we want to execute a JavaScript when an event
	//Code for PrivateRoute.js

	import React from "react";

	import { Navigate } from "react-router-dom";
	import { useAuth } from "../contexts/AuthContext";

	export default function PrivateRoute({ children }) {
	const { currentUser } = useAuth();
	import { useContext, createContext } from "react";

	const moods = {
	happy: ':)',
	sad: ':('
	};

	const MoodContext = createContext(moods);

	function App() {
	import React, { useState } from 'react'

	export default function Signup() {

	const people = [{name:'Jamie', age:37, id:1},{name:'Tyrion', age:36, id:2}];
	const [users, updateUser] = useState(people);

	//For Printing in cosole
	people.map((person)=>{
	console.log(person.name)
	<?php

	//This class helps to connect to the

	class Connection{
	public function connect()
	{
	return new PDO('mysql:host=localhost; dbname=sqlinjection2','root','root');
	}
	}
	<?php

	require 'pdo.php';

	//1. Create an instance of connection
	$pdo_obj = new Connection();


	//2. Connect to the server + db
	try