commit Exercise_30_19

csv77 · csv77 · commit d4af2e5ce316 · 2017-10-02T22:04:19.000+02:00
diff --git a/Chapter_30/exercise_30_19/Exercise_30_19.java b/Chapter_30/exercise_30_19/Exercise_30_19.java
@@ -0,0 +1,113 @@
+package exercise_30_19;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import javafx.application.Application;
+import javafx.application.Platform;
+import javafx.geometry.Insets;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Label;
+import javafx.scene.layout.BorderPane;
+import javafx.scene.layout.HBox;
+import javafx.scene.paint.Color;
+import javafx.scene.shape.Rectangle;
+import javafx.stage.Stage;
+
+public class Exercise_30_19 extends Application {
+
+    @Override
+    public void start(Stage primaryStage) {
+        ArrayList<Integer> list1 = new ArrayList<>();
+        for(int i = 0; i < 50; i++) {
+            list1.add(i + 1);
+        }
+        Collections.shuffle(list1);
+        
+        HBox hBox = new HBox(10);
+        hBox.setPadding(new Insets(5));
+        
+        HistogramPane pane1 = new SelectionSortPane(list1, new Label("Selection Sort"));
+//        HistogramPane pane2 = new HistogramPane(list1, new Label("Insertion Sort"));
+//        HistogramPane pane3 = new HistogramPane(list1, new Label("Bubble Sort"));
+        hBox.getChildren().addAll(pane1);
+        
+        Scene scene = new Scene(hBox);
+        scene.getStylesheets().add("file:///c:/programming/java/Intro_to_Java_Programming_10th_exercises/JavaProgrammingExercises/Chapter_30/exercise_30_19/style2.css");
+        primaryStage.setTitle("Exercise_30_19");
+        primaryStage.setScene(scene);
+        primaryStage.show();
+    }
+    
+    private abstract class HistogramPane extends BorderPane {
+        protected ArrayList<Integer> list;
+        protected HBox hBoxForChart = new HBox();
+        protected Label lblSortType;
+        protected Rectangle[] rectangles;
+        protected final int WIDTH = 5;
+        protected final int HEIGHT = 5;
+
+        public HistogramPane(ArrayList<Integer> list, Label lblSortType) {
+            this.list = list;
+            this.lblSortType = lblSortType;
+            rectangles = new Rectangle[list.size()];
+            setCenter(hBoxForChart);
+            setTop(lblSortType);
+            BorderPane.setAlignment(lblSortType, Pos.CENTER);
+            repaintHistogram();
+        }
+
+        public void repaintHistogram() {
+            hBoxForChart.getChildren().clear();
+            hBoxForChart.setAlignment(Pos.BASELINE_CENTER);
+            int j = 0;
+            for(Integer i : list) {
+                rectangles[j] = new Rectangle(WIDTH, i * HEIGHT);
+                rectangles[j].setStroke(Color.BLACK);
+                rectangles[j].setFill(Color.TRANSPARENT);
+                hBoxForChart.getChildren().add(rectangles[j]);
+                j++;
+            }
+        }
+    }
+    
+    private class SelectionSortPane extends HistogramPane {
+        private Thread thread = new Thread(() -> {
+            try {
+                while(true) {
+                    Platform.runLater(() -> selectionSort());
+                    Thread.sleep(1000);
+                }
+            }
+            catch(InterruptedException ex) {
+                ex.printStackTrace();
+            }
+        });
+        
+        public SelectionSortPane(ArrayList<Integer> list, Label lblSortType) {
+            super(list, lblSortType);
+        }
+
+        public void selectionSort() {
+            for(int i = 0; i < list.size() - 1; i++) {
+                int currentMin = list.get(i);
+                int currentMinIndex = i;
+                for(int j = i + 1; j < list.size(); j++) {
+                    if(currentMin > list.get(j)) {
+                        currentMin = list.get(j);
+                        currentMinIndex = j;
+                    }
+                }
+                if(currentMinIndex != i) {
+                    list.set(currentMinIndex, list.get(i));
+                    list.set(i, currentMin);
+                }
+                repaintHistogram();
+            }
+        }
+    }
+    
+    public static void main(String[] args) {
+        launch(args);
+    }
+}
diff --git a/Chapter_30/exercise_30_19/style2.css b/Chapter_30/exercise_30_19/style2.css
@@ -0,0 +1,47 @@
+#hboxfornodes {
+    -fx-border-color: black;
+    -fx-padding: 2;
+    -fx-alignment: bottom-left;
+}
+
+#pane {
+    -fx-border-color: black;
+}
+
+.button {
+    -fx-font-family: "Ariel";
+    -fx-font-weight: bold;
+    -fx-background-radius: 5, 5;
+}
+
+.label {
+    -fx-font-family: "Ariel";
+    -fx-font-weight: bold;
+}
+
+#labels {
+    -fx-font-family: "Courier New";
+    -fx-font-weight: bold;
+    -fx-font-size: 30px;
+}
+
+#labelwithred {
+    -fx-text-fill: red;
+    -fx-font-family: "Courier New";
+    -fx-font-weight: bold;
+    -fx-font-size: 30px;
+}
+
+#line {
+    -fx-stroke: deepskyblue;
+    -fx-stroke-width: 3;
+}
+
+#redline {
+    -fx-stroke: red;
+    -fx-stroke-width: 3;
+}
+
+#textfield {
+    -fx-alignment: BASELINE_LEFT
+}
