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+// This file is part of www.nand2tetris.org
+// and the book "The Elements of Computing Systems"
+// by Nisan and Schocken, MIT Press.
+// File name: projects/11/ComplexArrays/Main.jack
+
+/**
+ * Performs several complex array processing tests.
+ * For each test, the expected result is printed, along with the
+ * actual result. In each test, the two results should be equal.
+ */
+class Main {
+
+    function void main() {
+        var Array a, b, c;
+        
+        let a = Array.new(10);
+        let b = Array.new(5);
+        let c = Array.new(1);
+        
+        let a[3] = 2;
+        let a[4] = 8;
+        let a[5] = 4;
+        let b[a[3]] = a[3] + 3;  // b[2] = 5
+        let a[b[a[3]]] = a[a[5]] * b[((7 - a[3]) - Main.double(2)) + 1];  // a[5] = 8 * 5 = 40
+        let c[0] = null;
+        let c = c[0];
+        
+        do Output.printString("Test 1: expected result: 5; actual result: ");
+        do Output.printInt(b[2]);
+        do Output.println();
+        do Output.printString("Test 2: expected result: 40; actual result: ");
+        do Output.printInt(a[5]);
+        do Output.println();
+        do Output.printString("Test 3: expected result: 0; actual result: ");
+        do Output.printInt(c);
+        do Output.println();
+        
+        let c = null;
+
+        if (c = null) {
+            do Main.fill(a, 10);
+            let c = a[3];
+            let c[1] = 33;
+            let c = a[7];
+            let c[1] = 77;
+            let b = a[3];
+            let b[1] = b[1] + c[1];  // b[1] = 33 + 77 = 110;
+        }
+
+        do Output.printString("Test 4: expected result: 77; actual result: ");
+        do Output.printInt(c[1]);
+        do Output.println();
+        do Output.printString("Test 5: expected result: 110; actual result: ");
+        do Output.printInt(b[1]);
+        do Output.println();
+        return;
+    }
+    
+    function int double(int a) {
+    	return a * 2;
+    }
+    
+    function void fill(Array a, int size) {
+        while (size > 0) {
+            let size = size - 1;
+            let a[size] = Array.new(3);
+        }
+        return;
+    }
+}