Java语言程序设计 第十四章 （14.1、14.2、14.3、14.4、12.5、14.6）

程序小白，希望和大家多交流，共同学习

因为没有第十版的汉语电子书，（有的汉语版是第八版，使用的还是Swing）这部分内容只能使用英语版截屏。







14.1

//将image文件夹中的照片加载出来
import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.image.ImageView;
import javafx.geometry.Insets;
import javafx.scene.layout.GridPane;

public class ShowFlag extends Application
{
@Override
public void start(Stage primaryStage)
{
GridPane pane = new GridPane();
pane.setPadding(new Insets(5, 5, 5, 5));
pane.setHgap(10);
pane.setVgap(10);
ImageView p1 = new ImageView("image/flag5.gif");
ImageView p2 = new ImageView("image/flag3.gif");
ImageView p3 = new ImageView("image/flag2.gif");
ImageView p4 = new ImageView("image/flag6.gif");

pane.add(p1, 0, 0);
pane.add(p2, 1, 0);
pane.add(p3, 0, 1);
pane.add(p4, 1, 1);

Scene scene = new Scene(pane);
primaryStage.setTitle("ShowFlag");
primaryStage.setScene(scene);
primaryStage.show();
}
}

14.2

import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.image.ImageView;
import javafx.scene.layout.GridPane;
import javafx.geometry.Insets;

public class WellChessboard extends Application
{
@Override
public void start(Stage primaryStage)
{
GridPane pane = new GridPane();
pane.setPadding(new Insets(8, 8, 8, 8));
pane.setHgap(8);
pane.setVgap(8);
10345

for (int column = 0; column < 3; column++)
{
for (int row = 0; row < 3; row++)
{
int i = (int)(Math.random() * 3);
if (i != 2)
{
pane.add(getNode(i), column, row);
}
}
}

Scene scene = new Scene(pane);
primaryStage.setTitle("WellChessboard");
primaryStage.setScene(scene);
primaryStage.show();
}

//随机生成井字游戏中的操作
public ImageView getNode(int i)
{
if (i == 0)
{
return new ImageView("image/o.gif");
}
else
{
return new ImageView("image/x.gif");
}
}
}

14.3

//随机显示一副扑克牌中任意三张
//采取的随机方式：数组转列表，列表调用Collections.shuffle()方法
import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.HBox;
import javafx.geometry.Insets;
import javafx.scene.image.ImageView;
import java.util.Arrays;
import java.util.ArrayList;
import java.util.Collections;

public class ShowCard extends Application
{
@Override
public void start(Stage primaryStage)
{
HBox pane = new HBox(5);
pane.setPadding(new Insets(5, 5, 5, 5));
Integer[] array = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
51, 52};
ArrayList<Integer> list = new ArrayList<>(Arrays.asList(array));
Collections.shuffle(list);

ImageView p1 = new ImageView("image/card/" + Integer.valueOf(list.get(0)) + ".png");
ImageView p2 = new ImageView("image/card/" + Integer.valueOf(list.get(1)) + ".png");
ImageView p3 = new ImageView("image/card/" + Integer.valueOf(list.get(2)) + ".png");
pane.getChildren().addAll(p1, p2, p3);

Scene scene = new Scene(pane);
primaryStage.setTitle("ShowCard");
primaryStage.setScene(scene);
primaryStage.show();
}
}

14.4_1

//多次显示一旋转后的字符串
//使用方法就是直接将Label旋转
//但是由于中心不好找，要将边距设置好
import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.HBox;
import javafx.scene.paint.Color;
import javafx.scene.control.Label;
import javafx.scene.text.Font;
import javafx.scene.text.FontWeight;
import javafx.scene.text.FontPosture;
import javafx.geometry.Insets;

public class ShowLabel_Java extends Application
{
@Override
public void start(Stage primaryStage)
{
HBox pane = new HBox(10);
pane.setPadding(new Insets(15, 15, 15, 15));
for (int i = 0; i < 5; i++)
{
Label write = new Label("Java");
write.setFont(Font.font("TimesRomes", FontWeight.BOLD, FontPosture.ITALIC, 22));
write.setRotate(90);
//这个设置可以有效的防止旋转后的图形超过面
HBox.setMargin(write, new Insets(15, 0, 15, 0));
//设置Label中字体的颜色
write.setTextFill(Color.color(Math.random(), Math.random(), Math.random(), Math.random()));
pane.getChildren().add(write);
}

Scene scene = new Scene(pane);
primaryStage.setTitle("ShowLabel");
primaryStage.setScene(scene);
primaryStage.show();
}
}

14.4_2

//多次显示一旋转后的字符串
//使用VBox将字一一旋转后，再放在HBox中
//使得单词分开，不好看
import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.control.Label;
import javafx.scene.text.Font;
import javafx.geometry.Insets;
import javafx.scene.paint.Color;
import javafx.scene.text.FontWeight;
import javafx.scene.text.FontPosture;

public class ShowHVBox_Java extends Application
{
@Override
public void start(Stage primaryStage)
{
HBox pane = new HBox(15);
pane.setPadding(new Insets(15, 15, 15, 15));
for (int i = 0; i < 5; i++)
{
pane.getChildren().add(getVBox());
}

Scene scene = new Scene(pane);
primaryStage.setTitle("ShowHVBox_Java");
primaryStage.setScene(scene);
primaryStage.show();
}

public VBox getVBox()
{
VBox pane = new VBox();
String str = "JAVA";
int length = str.length();
Color color = new  Color(Math.random(), Math.random(), Math.random(), Math.random());
for (int i = 0; i < length; i++)
{
Label lb = new Label(str.charAt(i) + "");
lb.setFont(Font.font("TimesRomes", FontWeight.BOLD, FontPosture.ITALIC, 22));
lb.setTextFill(color);
lb.setRotate(90);
pane.setMargin(lb, new Insets(0, 15, 0, 15));
pane.getChildren().add(lb);
}

return pane;
}
}

14.4_3

//多次显示一旋转后的字符串
//每个字符串现在VBox中设置好，然后将面板加到HBox面板中
//中心不好找，要将边距设置好
import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.control.Label;
import javafx.scene.text.Font;
import javafx.geometry.Insets;
import javafx.scene.text.Text;
import javafx.scene.paint.Color;
import javafx.scene.text.FontWeight;
import javafx.scene.text.FontPosture;

public class ShowHVBoxText_Java extends Application
{
@Override
public void start(Stage primaryStage)
{
HBox pane = new HBox(15);
pane.setPadding(new Insets(15, 15, 15, 15));
for (int i = 0; i < 5; i++)
{
pane.getChildren().add(getVBox());
}

Scene scene = new Scene(pane);
primaryStage.setTitle("ShowHVBoxText_Java");
primaryStage.setScene(scene);
primaryStage.show();
}

public VBox getVBox()
{
VBox pane = new VBox();
Color color = new  Color(Math.random(), Math.random(), Math.random(), Math.random());
Text lb = new Text("Java");
lb.setFont(Font.font("TimesRomes", FontWeight.BOLD, FontPosture.ITALIC, 22));
lb.setFill(color);
lb.setRotate(90);
pane.getChildren().add(lb);
return pane;
}
}

14.5

//圆形显示一个字符串，并且每个单词也要指向圆心
//初中数学，找坐标和角度关系
import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.text.Text;
import javafx.scene.text.Font;
import javafx.scene.paint.Color;
import javafx.scene.text.FontWeight;
import javafx.scene.text.FontPosture;
import javafx.scene.layout.Pane;

public class ShowString extends Application
{
@Override
public void start(Stage primaryStage)
{
Pane pane = new Pane();
String str = "WELCOM TO JAVA";
int length = str.length();
final double centerX = 200, centerY = 200, radius = 100;
double divide = 2 * Math.PI / length;

for (int i = 0; i < length; i++)
{
double newX = centerX + radius * Math.cos(i * divide);
double newY = centerY + radius * Math.sin(i * divide);
Text t = new Text(newX, newY, str.charAt(i) + "");
t.setFill(Color.RED);
//Text中的setFont(Font)
t.setFont(Font.font("MyFont", FontWeight.BOLD, FontPosture.ITALIC, 15));
//旋转字体
int r = (int)((Math.PI / 2 + i * divide) / (2 * Math.PI) * 360);
t.setRotate(r);
pane.getChildren().add(t);
}

Scene scene = new Scene(pane, 400, 400);
primaryStage.setTitle("ShowString");
primaryStage.setScene(scene);
primaryStage.show();
}
}

15.6

//写着写着就写出了兴趣，把方方正正的棋盘改成了
//将面板划分为64份，颜色按照棋盘分布，大小随着窗体大小改变
import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.GridPane;
import javafx.scene.paint.Color;
import javafx.geometry.Insets;
import javafx.scene.shape.Rectangle;
import javafx.beans.property.DoubleProperty;
import javafx.beans.property.SimpleDoubleProperty;

public class Checkerboard extends Application
{
@Override
public void start(Stage primaryStage)
{
GridPane pane = new GridPane();
//按照黑白存在的规律，先奇数行的白，然后奇数行的黑
//接着偶数行的黑，最后偶数行的白
for (int column = 0; column < 8; column = column + 2)
{
for (int row = 0; row < 8; row = row + 2)
{
pane.add(getSquare(column, row, pane, 0), column, row);
}
}
for (int column = 1; column < 8; column = column + 2)
{
for (int row = 0; row < 8; row = row + 2)
{
pane.add(getSquare(column, row, pane, 1), column, row);
}
}
for (int column = 0; column < 8; column = column + 2)
{
for (int row = 1; row < 8; row = row + 2)
{
pane.add(getSquare(column, row, pane, 1), column, row);
}
}
for (int column = 1; column < 8; column = column + 2)
{
for (int row = 1; row < 8; row = row + 2)
{
pane.add(getSquare(column, row, pane, 0), column, row);
}
}

Scene scene = new Scene(pane);
primaryStage.setTitle("Checkerbord");
primaryStage.setScene(scene);
primaryStage.show();
}

//按照给定行和列返回设定确定位置，并返回（使用绑定bind）
public Rectangle getSquare(int column, int row, GridPane pane, int judge)
{
Rectangle re = new Rectangle();
//找到每个格子的起始坐标，面板的宽和高：pane.width,pane.height
re.xProperty().bind(pane.widthProperty().divide(8).multiply(row));
re.yProperty().bind(pane.heightProperty().divide(8).multiply(column));
//确定每个格子的高和宽
re.widthProperty().bind(pane.widthProperty().divide(8));
re.heightProperty().bind(pane.heightProperty().divide(8));

if (judge == 0)
{
re.setFill(Color.WHITE);
re.setStroke(Color.WHITE);
}
else if (judge == 1)
{
re.setFill(Color.BLACK);
re.setStroke(Color.BLACK);
}

return re;
}
}