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“PKIX path building failed” and “unable to find valid certification path to requested target”
...
Go to URL in your browser:
firefox - click on HTTPS certificate chain (the lock icon right next to URL address). Click "more info" > "security" > "show certificate" > "details" > "export..". Pickup the name and choos...
What is the difference between Class.getResource() and ClassLoader.getResource()?
...es relative to the classpath root.
To debug issues like that, I print the URL:
System.out.println( getClass().getResource(getClass().getSimpleName() + ".class") );
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...
How can prepared statements protect from SQL injection attacks?
...blic static void main(String[] args) throws SQLException {
String url = "jdbc:postgresql://localhost/postgres?user=user&password=pwd";
Connection conn = DriverManager.getConnection(url);
Statement stmt = conn.createStatement();
String sql = "SELECT paymentType, ...
Why should we include ttf, eot, woff, svg,… in a font-face
...owsers that support it.)
@font-face {
font-family: 'MyWebFont';
src: url('myfont.woff2') format('woff2'),
url('myfont.woff') format('woff');
}
Support for woff can be checked at http://caniuse.com/woff
Support for woff2 can be checked at http://caniuse.com/woff2
...
How do you synchronise projects to GitHub with Android Studio?
...e root of the project and do git remote add <remote_name> <remote_url>
Now when you do VCS -> Commit changes -> Commit & Push you should see your remote and everything should work through the GUI.
If you are getting the error: fatal: remote <remote_name> already exist...
How to post pictures to instagram using API
...However, if you reverse engineer the API, you can.
function SendRequest($url, $post, $post_data, $user_agent, $cookies) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://i.instagram.com/api/v1/'.$url);
curl_setopt($ch, CURLOPT_USERAGENT, $user_agent);
curl_setopt($ch, CUR...
How to “crop” a rectangular image into a square with CSS?
...
<div class="thumb1">
</div>
CSS:
.thumb1 {
background: url(blah.jpg) 50% 50% no-repeat; /* 50% 50% centers image in div */
width: 250px;
height: 250px;
}
.thumb1:hover { YOUR HOVER STYLES HERE }
EDIT: If the div needs to link somewhere just adjust HTML and Styles like so:
...