updates to simplify example

core-java/src/main/java/com/baeldung/jar/Dimensioner.java

@@ -1,27 +0,0 @@
-package com.baeldung.jar;
-
-import java.io.BufferedReader;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.util.ArrayList;
-import java.util.List;
-
-public class Dimensioner {
-
-    public List<Rectangle> loadFromFile(String dimensionFile) throws FileNotFoundException, IOException {
-        List<Rectangle> rectangles = new ArrayList<Rectangle>();
-        try (BufferedReader br = new BufferedReader(new InputStreamReader(Dimensioner.class.getResourceAsStream(dimensionFile)))) {
-            String line;
-            while ((line = br.readLine()) != null) {
-                String[] dimensions = line.split(",");
-                if (dimensions.length == 2) {
-                    Rectangle rectangle = new Rectangle(Integer.valueOf(dimensions[0]), Integer.valueOf(dimensions[1]));
-                    rectangles.add(rectangle);
-                }
-            }
-        }
-        return rectangles;
-    }
-
-}

core-java/src/main/java/com/baeldung/jar/JarExample.java

@@ -1,31 +1,9 @@
 package com.baeldung.jar;
 
-import java.io.IOException;
-import java.util.List;
-
 public class JarExample {
-    private static final String DIMENSION_FILE = "/dimensions.txt";
 
     public static void main(String[] args) {
-        String inputType = System.getProperty("input");
-        if (inputType != null && inputType.equalsIgnoreCase("file")) {
-            Dimensioner dimensioner = new Dimensioner();
-            try {
-                List<Rectangle> rectangles = dimensioner.loadFromFile(DIMENSION_FILE);
-                rectangles.forEach(rectangle -> {
-                    rectangle.printArea();
-                    rectangle.printPerimeter();
-                });
-            } catch (IOException e) {
-                System.err.println("Exception loading dimensions");
-            }
-        } else if (args.length > 0) {
-            int length = Integer.valueOf(args[0]);
-            int width = (args.length > 1) ? Integer.valueOf(args[1]) : Integer.valueOf(args[0]);
-            Rectangle rectangle = new Rectangle(length, width);
-            rectangle.printArea();
-            rectangle.printPerimeter();
-        }
+        System.out.println("Hello Baeldung Reader!");
     }
 
 }

core-java/src/main/java/com/baeldung/jar/Rectangle.java

@@ -1,44 +0,0 @@
-package com.baeldung.jar;
-
-public class Rectangle {
-    private int length;
-    private int width;
-
-    public Rectangle(int length, int width) {
-        this.length = length;
-        this.width = width;
-    }
-
-    public int area() {
-        return length * width;
-    }
-
-    public int perimeter() {
-        return (length * 2) + (width * 2);
-    }
-
-    public void printArea() {
-        System.out.println("Area: " + area());
-    }
-
-    public void printPerimeter() {
-        System.out.println("Perimeter: " + perimeter());
-    }
-
-    public int getLength() {
-        return length;
-    }
-
-    public void setLength(int length) {
-        this.length = length;
-    }
-
-    public int getWidth() {
-        return width;
-    }
-
-    public void setWidth(int width) {
-        this.width = width;
-    }
-
-}