Copy and paste the following into your blog description:
<script src="https://cdn.rawgit.com/google/code-prettify/master/loader/run_prettify.js"></script>Use the following <pre/> tags in any of your Tumblr posts:
<pre class="prettyprint">
Many
lines
of
code
</pre>After you’re done your code should look beautiful like this example:
package com.schimmelmann.us.example;
class HelloWorld {
private static final String HELLO_WORLD = "Hello World!";
public static void main(String[] args) {
System.out.println(HELLO_WORLD);
}
}