title: Change Processing API level to use lambda
body: <p>I've the below code snippet in Processing 3.3.6:</p>
  
  <p><code>menuBarButtons.add(new TextButton("File", 0, 0, 20, menuBarHeight, (() -&gt; println("Test")) ));</code></p>
  
  <p>However, processing gives the error</p>
  
  <p><code>Lambda expressions are allowed only at source level 1.8 or above</code></p>
  
  <p>This is quite easy to fix in any normal java IDE by changing the JRE in the build path/run configuration, but I can't find any option for this in the settings. I tried copy pasting a more up to date JRE into the processing folder, but to no avail.</p>