template for expressionevaluator

src/main/java/uk/ac/cam/acr31/oop/democode1920/lecture5/ExpressionEvaluator.java

+package uk.ac.cam.acr31.oop.democode1920.lecture5;
+
+public class ExpressionEvaluator {
+
+  public static void main(String[] args) {
+
+    // Write a program that can evaluate arithmetic expressions such as 1 + 2 * 3
+
+    //     +
+    //    / \
+    //   1  *
+    //     / \
+    //    2  3
+  }
+}