Setting up environment variable for checker framework

I want to use checker framework for java and I am setting environment variable for it but when I am checking version of it in PowerShell in windows. It is showing that it is not able to access checker framework.

java -Xbootclasspath/p:%CHECKERS%/binary/jsr308-all.jar -jar %CHECKERS%/binary/jsr308-all.jar -version 

Here is the error

Error: Unable to access jarfile %CHECKERS%/binary/jsr308-all.jar

I have unzipped the downloaded file in C drive. And for the environment variable here is the paths that i have tried.

  • 1

C:\checker-framework-2.7.0\checker-framework-2.7.0\checker\di

  • 2

C:\checker-framework\checkers

  • 3

C:\checker-framework-2.7.0\checker-framework-2.7.0\checker

  • 4

C:\checker-framework-2.7.0\checker-framework-2.7.0

Broken Links Checker – anchor links

So it looks like It won’t detect if an anchor link page is broken. Is there a setting somewhere I’m missing that will allow anchor links to be scanned. 
Example: 
site.com/whats-it-worth/#money
site.com/whats-it-worth/

It will only find that 2nd link is broken. Both give 404 pages because /whats-it-worth/ was renamed to a different page. So it’s not that the anchor is bad, the whole page is bad.

Easy to read palindrome checker

I made a palindrome checker that’s supposed to be designed to be simple and easy to read. Please let me know what you think. I believe the time complexity is $ \mathcal{O}(n)$ but I’m not too sure about that:

Challenge: You’ll need to remove all non-alphanumeric characters (punctuation, spaces and symbols) and turn everything into the same case (lower or upper case) in order to check for palindromes.

function reverseString(str) {    str = str.replace(/[^\w\s]|_/g, "").toLowerCase().split(" ").join("");   var array = [];   for(var i = str.length ; i >=0; i--)   {     array.push(str[i])   }   return(array.join("")); }   reverseString("My age is 0, 0 si ega ym.");  function palindrome(str) {   str = str.replace(/[^\w\s]|_/g, "").toLowerCase().split(" ").join("");   if(str === reverseString(str))   {    return true;    }   else   {     return false;   } } 

Sudoku checker by ayush

I have my general code but don’t know how to add a function for my check answer button. Can somebody help me make a function for my check answer button?

<!DOCTYPE html>  <!-- Sudoku checking thing --> <HTML> <HEAD>    <TITLE>Ayush & Ranveer's sudoku checker</TITLE> </HEAD> <BODY> <form method="post" name="Sudoku"> <input id="C1_1" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="1" type="TEXT"> <input id="C1_2" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C1_3" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="3" type="TEXT"> <input id="C1_4" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C1_5" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="5" type="TEXT"> <input id="C1_6" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C1_7" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="7" type="TEXT"> <input id="C1_8" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C1_9" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="9" type="TEXT"> <br> <input id="C2_1" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C2_2" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="5" type="TEXT"> <input id="C2_3" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C2_4" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="7" type="TEXT"> <input id="C2_5" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C2_6" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="9" type="TEXT"> <input id="C2_7" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C2_8" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="2" type="TEXT"> <input id="C2_9" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <br> <input id="C3_1" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="7" type="TEXT"> <input id="C3_2" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C3_3" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="9" type="TEXT"> <input id="C3_4" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C3_5" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="2" type="TEXT"> <input id="C3_6" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C3_7" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="4" type="TEXT"> <input id="C3_8" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C3_9" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="6" type="TEXT"> <br> <input id="C4_1" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C4_2" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="3" type="TEXT"> <input id="C4_3" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C4_4" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="5" type="TEXT"> <input id="C4_5" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C4_6" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="7" type="TEXT"> <input id="C4_7" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C4_8" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="9" type="TEXT"> <input id="C4_9" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <br> <input id="C5_1" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="5" type="TEXT"> <input id="C5_2" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C5_3" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="7" type="TEXT"> <input id="C5_4" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C5_5" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="9" type="TEXT"> <input id="C5_6" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C5_7" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="2" type="TEXT"> <input id="C5_8" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C5_9" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="4" type="TEXT"> <br> <input id="C6_1" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C6_2" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="9" type="TEXT"> <input id="C6_3" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C6_4" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="2" type="TEXT"> <input id="C6_5" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C6_6" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="4" type="TEXT"> <input id="C6_7" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C6_8" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="6" type="TEXT"> <input id="C6_9" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <br> <input id="C7_1" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="3" type="TEXT"> <input id="C7_2" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C7_3" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="5" type="TEXT"> <input id="C7_4" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C7_5" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="7" type="TEXT"> <input id="C7_6" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C7_7" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="9" type="TEXT"> <input id="C7_8" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C7_9" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="2" type="TEXT"> <br> <input id="C8_1" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C8_2" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="7" type="TEXT"> <input id="C8_3" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C8_4" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="9" type="TEXT"> <input id="C8_5" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C8_6" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="2" type="TEXT"> <input id="C8_7" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C8_8" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="4" type="TEXT"> <input id="C8_9" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <br> <input id="C9_1" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="9" type="TEXT"> <input id="C9_2" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C9_3" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="2" type="TEXT"> <input id="C9_4" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C9_5" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="4" type="TEXT"> <input id="C9_6" maxlength="1" size="1" style="BACKGROUND-COLOR:ORANGE;" value="" type="TEXT"> <input id="C9_7" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="6" type="TEXT"> <input id="C9_8" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="" type="TEXT"> <input id="C9_9" maxlength="1" size="1" style="BACKGROUND-COLOR:LIME;" value="8" type="TEXT"> <br> <br> <INPUT TYPE="button" VALUE="Read Cells" NAME="ReadCellsButton" onClick="ReadCells()"> <INPUT TYPE="button" VALUE="Restore Cells" NAME="RestoreCellsButton" onClick="RestoreCells()"> <INPUT TYPE="button" VALUE="Clear Puzzle" NAME="ClearPuzzleButton" onClick="ClearPuzzle()"> <INPUT TYPE="button" VALUE="Clear Text Area" NAME="ClearTextareaButton" onClick="ClearTextArea()"> <INPUT TYPE="button" VALUE="Check Answer" NAME="CheckAnswer" onClick="CheckAnswer()"> <textarea id="OutputText" rows="10" cols="80" readonly></textarea> </form> <SCRIPT LANGUAGE="JavaScript"> <!-- Beginning of JavaScript -  var puzzle = new Array(9);  for (i=0; i < 9; i++)    puzzle[i]=new Array(9);  // reads values from the Sudoku form, stores them in the puzzle[][] array,  // and writes them to the OutputText TEXTAREA  function ReadCells() {    var cell;     document.getElementById('OutputText').value = "ReadCells():\n";    for(i = 1; i <= 9; i++){       for(j = 1; j <= 9; j++){          cell = "C" + i + "_" + j;          puzzle[i-1][j-1] = document.getElementById(cell).value;       }       document.getElementById('OutputText').value += puzzle[i-1].join(" ");       document.getElementById('OutputText').value += "\n";    } }  // writes values from the puzzle[][] array to the Sudoku form function RestoreCells() {    var cell;     for(i = 1; i <= 9; i++){       for(j = 1; j <= 9; j++){          cell = "C" + i + "_" + j;          document.getElementById(cell).value = puzzle[i-1][j-1];       }    } }  // clears the Sudoku form function ClearPuzzle(form) {    var cell;     for(i = 1; i <= 9; i++){       for(j = 1; j <= 9; j++){          cell = "C" + i + "_" + j;          document.getElementById(cell).value = "";       }    }  }  // clears the TEXTAREA below the Sudoku puzzle function ClearTextArea(form){    document.getElementById('OutputText').value = ""; }  // - End of JavaScript - --> </SCRIPT> <BODY> </HTML> 

Password Checker

In my second post I am looking for the way to change answer dynamically. As you can see there it changes when I completely fill the input. I want it to change for every letter typed . I will be gratefull guys !

var passwordField = document.forms["takis"]["hero"]; var checkContrainer = document.getElementById("contrainer");  function sila(){     if(passwordField.value.length >= 8 && passwordField.value.match(/[0-9]+/)!= null && passwordField.value.match(/[a-z]+/)!= null && passwordField.value.match(/[A-Z]+/)!= null)         checkContrainer.innerHTML = '<h2 style="color:#449055"> Very Strong </h2>';     else if(passwordField.value.length >= 8 && passwordField.value.match(/[0-9]+/)!= null)         checkContrainer.innerHTML = '<h2 style="color:#AAEE99"> Strong </h2>';     else if((passwordField.value.length >= 8 && passwordField.value.match(/[a-z]+/)!= null && passwordField.value.match(/[A-Z]+/)!= null) || passwordField.value.length >= 6 && passwordField.value.length <= 7 && passwordField.value.match(/[0-9]+/)!= null && passwordField.value.match(/[a-z]+/)!= null && passwordField.value.match(/[A-Z]+/)!= null)         checkContrainer.innerHTML = '<h2 style="color:yellow"> Medium </h2>';     else         checkContrainer.innerHTML = '<h2 style="color:red"> Weak </h2>'; }  passwordField.addEventListener("change", sila);
body {   background-color: #06619A;    margin: 0; } form {   background-color: #30A4C8;   width: 25%;   margin: auto;   padding: 20px;   min-height: 80px;   border: 2px #114577 solid;   border-radius: 8px; } div {   background-color: #444444;   border-radius: 12px;   text-align: center;   border: 1px #333333 solid;   margin-top: 2px;   height: 70px; } input {   outline: 0;   border: 2px #114577 solid;   border-radius: 8px;   width: 80%; } input:hover {   border-color: #996655;   transition: 0.5s; } input:not(:hover) {   transition: 0.5s; } h1 {   font-size: 22px;   text-align: center;   font-family: "Arial Black";   color: white;   background-color: #30A4C8;   margin: 0;   margin-bottom: 20px;   border-bottom: 2px #114577 solid;   border-radius: 5px; }
<!DOCTYPE html> <html> <head>     <meta charset="utf-8">     <link rel="stylesheet" href="setaki.css" type="text/css"> </head> <body>   <h1> Password Checker v26.5 <sup>Really hard work no scam !</sup></h1>     <form name="takis">         Hasło: <input type="password" name="hero">         <div id="contrainer">         </div>     </form>     <script src="mmn.js"></script> </body>  </html>

Password Checker using Pwnedpasswords API in Rust

Takes user password, hashes password to sha1 and does a check against the Pwnedpasswords database.

I know I need to use unwrap less and do more real checking to improve the clarity of errors. In what other places is my code lacking and what should I learn or look at to improve in the future.

The current resources I am using are the Rust by Example, the documentation for the crates I used and in general looking at rust code on GitHub.

$   cargo run --bin checker -- check Password: ********* Password is (not) compromised 
#[macro_use] extern crate clap; extern crate crypto; extern crate reqwest; extern crate regex; extern crate rpassword;  use crypto::digest::Digest; use crypto::sha1::Sha1; use clap::App; use regex::Regex;  /* loads clap cli config  * if the check subcommand is used, run check  */ fn main () {     let yaml = load_yaml!("config/clap_cli.yml");     let matches = App::from_yaml(yaml).get_matches();      if let Some(_m_check) = matches.subcommand_matches("check") {         check();     }  }  /* get password from user  * hash the password  * check against pwned database  * tell user if the password is bad  */ fn check () {     let value = &rpassword::prompt_password_stdout("Password: ")         .unwrap();     let mut hasher = Sha1::new();      hasher.input_str(value);     let pass_hash = hasher.result_str().to_uppercase();     let pass_hash_slice = pass_hash.get(0..5).unwrap();     let pass_hash_end = pass_hash.get(5..).unwrap();       let body = reqwest::get(         &format!("https://api.pwnedpasswords.com/range/{}", pass_hash_slice)         ).unwrap().text().unwrap();      let re_pass = Regex::new(&pass_hash_end).unwrap();      if re_pass.is_match(&body) {         println!("Password is compromised.");     } else {         println!("Password is not compromised.");     } } 

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Draw checker board

For an assignment, I had to draw a checkers board, with blue and red checkers, in python. What I have works, but I’m wondering if there’s a more elegant and/or efficient way to accomplish this feat? Any and all suggestions are welcome!

import turtle  def draw_box(t,x,y,size,fill_color):   t.penup()    t.goto(x,y)    t.pendown()    t.fillcolor(fill_color)   t.begin_fill()      for i in range(0,4):     board.forward(size)      board.right(90)    t.end_fill()   def draw_circle(t,x,y,radius,color):   t.penup()   t.goto(x,y)   t.pendown()   t.fillcolor(color)   t.begin_fill()   t.circle(radius)   t.end_fill()  def draw_chess_board():   square_color = "black"    start_x = 0    start_y = 0    box_size = 30    for i in range(0,8):        for j in range(0,8):           draw_box(board, start_x + j * box_size, start_y + i * box_size, box_size, square_color)           square_color = 'black' if square_color == 'white' else 'white'           if square_color == 'black' and i < 3:               draw_circle(board, board.xcor() + (box_size / 2), board.ycor() - box_size, box_size / 2, "red")           if square_color == 'black' and i > 4:               draw_circle(board, board.xcor() + (box_size / 2), board.ycor() - box_size, box_size / 2, "blue")          square_color = 'black' if square_color == 'white' else 'white'   board = turtle.Turtle()  draw_chess_board()  turtle.done()