StefanKrecher

//@version=2
study("RSI+MA", overlay=true)

// data series for RSI with length 14
rsi = rsi(close, 14)
// data series for Moving Average with length 9
ma = sma(close, 9)

// data series for buy signals: 
//price should be below the moving average and RSI should be smaller than 40

StefanKrecher

// Booleans

false.ifTrue { assert false }.ifFalse {  assert true  };

// Exceptions

{->  throw new NullPointerException("Buh!") }.on(NullPointerException).do { e ->
	assert e in Exception
	assert e in NullPointerException
	assert !(e in ArithmeticException)

StefanKrecher

class Smalltalk {
	static Boolean ifTrue (Boolean self, Closure c) {
		if(self) c()
		self
	}
	static Boolean ifFalse (Boolean self, Closure c) {
		if(!self) c()
		self
	}
	static Boolean 'do' (Boolean self, Closure c) {

StefanKrecher

PackageLoader fileInPackage: 'Android'.
| layout event droid samples |
droid := Android new.

layout := '<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/background"
        android:orientation="vertical" 
		android:layout_width="match_parent"
        android:layout_height="wrap_content" 

StefanKrecher

| url con is isr br line content pane frame |
<importPackage(java.net)>.
<importPackage(java.io)>.
url := <new URL('http://www.esvapi.org/v2/rest/passageQuery?key=IP&passage=Psalm+23&include-headings=false')>.
con := url openConnection.
is := con getInputStream.
isr := <new InputStreamReader(is)>.
br := <new BufferedReader(isr)>.
content := ''.
line := ''.