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--- basics:intro [2007/02/23 10:24]
bdefrain
+++ basics:intro [2021/02/05 13:49] (current)
@@ Line 1: / Line 1: @@
+[[basics:intro|Intro]]
+[[basics:ex1|Ex1]]
+[[basics:ex2|Ex2]]
+[[basics:ex3|Ex3]]
+[[basics:ex4|Ex4]]
+[[basics:ex5|Ex5]]
+[[basics:ex6|Ex6]]
+[[basics:ex7|Ex7]]
 ====== The Basics: Intro ======
-In this exercise, you will use aspects to instrument a dummy class in order to get acquainted with the basic techniques of AspectJ.
+In this exercise, you will use aspects to instrument a dummy class in order to get acquainted with the basic techniques of AspectJ: pointcuts, advices and inter-type declarations.
 ===== Set-up =====
   - Create a **new AspectJ Project** in Eclipse
-  - Create the following ''Application'' class:
+  - Create a **new class** ''Application'' containing the code given below.
+  - **Run** the code. Right-click the ''Application'' class and select **Run as...** -> **AspectJ/Java Application**
 <code aspectj>
 public class Application {
   public int go = 10;
   public void start() {
-    System.out.println("Starting");
+    System.out.println("Starting");
-    stop(go);
+    stop(go);
   }
   public void stop(int i) {
-    System.out.println("Stopping");
+    System.out.println("Stopping");
   }
   public void exec() throws Exception {
-    throw new Exception("An exception");
+    throw new Exception("An exception");
   }
-  public static void main(String[] args) {
+  public String toString() {
-    Application t = new Application();
+    return "Application go: " + go;
-    t.start();
+  }
-    t.stop(25);
-    try { t.exec(); }
+  public static void main(String[] arg) {
-    catch(Exception e) { System.out.println(e); }
+    Application t = new Application();
-  }
+    System.out.println(t);
+    t.start();
+    t.stop(25);
+    try { t.exec(); }
+    catch(Exception e) { System.out.println(e); }
+  }
 }
 </code>
-  - Create the following aspect.
+You should see the following output on the **Console** view (which you can open through **Window** -> **Show View** -> **Console**):
+<code>
+Application go: 10
+Starting
+Stopping
+Stopping
+java.lang.Exception: An exception
+</code>
+<note tip>
+In the following steps, you can use Eclipse's Run button (or the shortcut CTRL+F11) to quickly rerun the application using the last run configuration.
+</note>
+----
+Start the Basics track at [[basics:ex1|Exercise 1]].

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