Differences

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--- how_to_install_the_library_in_bluej [2019/08/15 18:07] – frchris
+++ how_to_install_the_library_in_bluej [2024/09/10 09:04] (current) – frchris
@@ Line 1: / Line 1: @@
-====== Installing KarelJRobot.jar Library in Blue J ======
+====== Installing an External Library in BlueJ with an external .jar file ======
-  - Make a New Project
+  - Make a New Project in BlueJ
-  - Under ''Tools'', select ''Preferences''
+  - Select ''Preferences'' (In MacOS it is under the 'BlueJ' menu,in Windows it is under 'Tools' ){{::tools.png?300|}}
   - Click the ''Libraries'' Tab
-  - Press the ''Add File'' button
+  - Press the ''Add File'' button {{::librry.png}}
-  - Select the ''kareljrobot.jar'' you downloaded, press the ''Open'' button
+  - Select the ''kareljrobot.jar'' file or other .jar file you downloaded, press the ''Open'' button
   - It will tell you to restart the Virtual Machine, press the ''Okay'' button
-  - Under the ''Tools'' menu select ''Reset Java Virtual Machine'' (or press **Ctrl-Shift-R**)
+  - Under the ''Tools'' menu select ''Reset Java Virtual Machine'' (or press **Ctrl-Shift-R**){{::reset.png?400|}}  Sometimes it is best to simply Quit and relaunch BlueJ.
+  - To test the APLU Turtle Library {{ ::jturtle-0.1.1.jar |jturtle-0.1.1.jar}}, try this  example program:<code java>
+import ch.aplu.turtle.*;
+import java.awt.Color;
+/**
+ *
+ * @author (Your Name)
+ * @version September 0, 2024
+ */
+public class MyPicture {
+	public static void main(String[] args) {
+        Turtle hexter = new Turtle(Color.GREEN);
+        hexter.setPos(100,-50);
+        for (int i=0; i< 6; i++) {
+        	hexter.forward(100);
+        	hexter.right(-60);
+        }
+        hexter.setPos(0,0);
+        hexter.setFillColor(Color.BLUE);
+	    hexter.fill();
+        Turtle t = new Turtle(hexter);
+        t.setColor(Color.RED);
+		t.setPos(-200, 180);
+	    t.hideTurtle().label( "by My name");
+	}
+}
+</code>
+  - To test our the ''kareljrobot.jar''installation, make a new class ''RobotRunner'' to test it out:<code java>
+  import kareltherobot.*;
+  public class RobotRunner implements Directions
+  {
+	public static void main(String[] args)
+	{
+		World.setDelay(150);
+		World.placeBeepers(4, 3, 2);
+		World.setVisible();
+	}
+  }
+</code>