java语言程序设计基础篇第十版练习答案.docx
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java语言程序设计基础篇第十版练习答案
01
importjavafx.application.Application;
importjavafx.geometry.Pos;
importjavafx.scene.Scene;
importjavafx.scene.layout.GridPane;
importjavafx.stage.Stage;
importjavafx.scene.image.ImageView;
publicclassExercise14_01extendsApplication{
@Override//OverridethestartmethodintheApplicationclass
publicvoidstart（StageprimaryStage）{
GridPanepane=newGridPane（）;
pane.setAlignment（Pos.CENTER）;
pane.setHgap（5）;
pane.setVgap（5）;
ImageViewimageView1=newImageView（"image/uk.gif"）;
ImageViewimageView2=newImageView（"image/ca.gif"）;
ImageViewimageView3=newImageView（"image/china.gif"）;
ImageViewimageView4=newImageView（"image/us.gif"）;
pane.add（imageView1,0,0）;
pane.add（imageView2,1,0）;
pane.add（imageView3,0,1）;
pane.add（imageView4,1,1）;
//Createasceneandplaceitinthestage
Scenescene=newScene（pane）;
primaryStage.setTitle（"Exercise14_01"）;//Setthestagetitle
primaryStage.setScene（scene）;//Placethesceneinthestage
primaryStage.show（）;//Displaythestage
}
/**
*ThemainmethodisonlyneededfortheIDEwithlimited
*JavaFXsupport.Notneededforrunningfromthecommandline.
*/
publicstaticvoidmain（String[]args）{
launch（args）;
}
}
02
importjavafx.application.Application;
importjavafx.geometry.Pos;
importjavafx.scene.Scene;
importjavafx.scene.layout.GridPane;
importjavafx.stage.Stage;
importjavafx.scene.image.ImageView;
importjavafx.scene.image.Image;
publicclassExercise14_02extendsApplication{
@Override//OverridethestartmethodintheApplicationclass
publicvoidstart（StageprimaryStage）{
ImageimageX=newImage（"image/x.gif"）;
ImageimageO=newImage（"image/o.gif"）;
GridPanepane=newGridPane（）;
pane.setAlignment（Pos.CENTER）;
pane.setHgap（5）;
pane.setVgap（5）;
for（inti=0;i<3;i++）{
for（intj=0;j<3;j++）{
intstatus=（int）（Math.random（）*3）;
if（status==0）{
pane.add（newImageView（imageX）,j,i）;
}
elseif（status==1）{
pane.add（newImageView（imageO）,j,i）;
}
}
}
//Createasceneandplaceitinthestage
Scenescene=newScene（pane）;
primaryStage.setTitle（"Exercise14_02"）;//Setthestagetitle
primaryStage.setScene（scene）;//Placethesceneinthestage
primaryStage.show（）;//Displaythestage
}
/**
*ThemainmethodisonlyneededfortheIDEwithlimited
*JavaFXsupport.Notneededforrunningfromthecommandline.
*/
publicstaticvoidmain（String[]args）{
launch（args）;
}
}
03
importjava.util.ArrayList;
importjavafx.application.Application;
importjavafx.geometry.Pos;
importjavafx.scene.Scene;
importjavafx.scene.layout.HBox;
importjavafx.stage.Stage;
importjavafx.scene.image.ImageView;
publicclassExercise14_03extendsApplication{
@Override//OverridethestartmethodintheApplicationclass
publicvoidstart（StageprimaryStage）{
//Therearetwowaysforshuffling.Oneistousethehintinthebook.
//Theotherwayistousethestaticshufflemethodinthejava.util.Collectionsclass.
ArrayListlist=newArrayList<>（）;
for（inti=1;i<=52;i++）{
list.add（i）;
}
java.util.Collections.shuffle（list）;
HBoxpane=newHBox（5）;
pane.setAlignment（Pos.CENTER）;
pane.getChildren（）.add（newImageView（"image/card/"+list.get（0）+".png"））;
pane.getChildren（）.add（newImageView（"image/card/"+list.get
（1）+".png"））;
pane.getChildren（）.add（newImageView（"image/card/"+list.get
（2）+".png"））;
//Createasceneandplaceitinthestage
Scenescene=newScene（pane）;
primaryStage.setTitle（"Exercise14_03"）;//Setthestagetitle
primaryStage.setScene（scene）;//Placethesceneinthestage
primaryStage.show（）;//Displaythestage
}
/**
*ThemainmethodisonlyneededfortheIDEwithlimited
*JavaFXsupport.Notneededforrunningfromthecommandline.
*/
publicstaticvoidmain（String[]args）{
launch（args）;
}
}
04
importjavafx.application.Application;
importjavafx.geometry.Pos;
importjavafx.scene.Scene;
importjavafx.scene.layout.HBox;
importjavafx.scene.paint.Color;
importjavafx.scene.text.Font;
importjavafx.scene.text.FontPosture;
importjavafx.scene.text.FontWeight;
importjavafx.scene.text.Text;
importjavafx.stage.Stage;
publicclassExercise14_04extendsApplication{
@Override//OverridethestartmethodintheApplicationclass
publicvoidstart（StageprimaryStage）{
HBoxpane=newHBox（）;
pane.setAlignment（Pos.CENTER）;
Fontfont=Font.font（"TimesNewRoman",FontWeight.BOLD,
FontPosture.ITALIC,22）;
for（inti=0;i<5;i++）{
Texttxt=newText（"Java"）;
txt.setRotate（90）;
txt.setFont（font）;
txt.setFill（newColor（Math.random（）,Math.random（）,Math.random（）,Math.random（）））;
pane.getChildren（）.add（txt）;
}
//Createasceneandplaceitinthestage
Scenescene=newScene（pane,200,100）;
primaryStage.setTitle（"Exercise14_04"）;//Setthestagetitle
primaryStage.setScene（scene）;//Placethesceneinthestage
primaryStage.show（）;//Displaythestage
}
/**
*ThemainmethodisonlyneededfortheIDEwithlimited
*JavaFXsupport.Notneededforrunningfromthecommandline.
*/
publicstaticvoidmain（String[]args）{
launch（args）;
}
}
05
importjavafx.application.Application;
importjavafx.scene.Scene;
importjavafx.scene.layout.Pane;
importjavafx.scene.text.Font;
importjavafx.scene.text.FontPosture;
importjavafx.scene.text.FontWeight;
importjavafx.scene.text.Text;
importjavafx.stage.Stage;
publicclassExercise14_05extendsApplication{
@Override//OverridethestartmethodintheApplicationclass
publicvoidstart（StageprimaryStage）{
Panepane=newPane（）;
Fontfont=Font.font（"TimesNewRoman",FontWeight.BOLD,
FontPosture.REGULAR,35）;
Strings="WELCOMETOJAVA";
doubleradius=80;
for（inti=0;idoublealpha=2*Math.PI*（s.length（）-i）/s.length（）;
Texttxt=newText（radius*Math.cos（alpha）+120,
120-radius*Math.sin（alpha）,s.charAt（i）+""）;
txt.setFont（font）;
txt.setRotate（360*i/s.length（）+90）;
pane.getChildren（）.add（txt）;
}
//Createasceneandplaceitinthestage
Scenescene=newScene（pane,240,240）;
primaryStage.setTitle（"Exercise14_05"）;//Setthestagetitle
primaryStage.setScene（scene）;//Placethesceneinthestage
primaryStage.show（）;//Displaythestage
}
/**
*ThemainmethodisonlyneededfortheIDEwithlimited
*JavaFXsupport.Notneededforrunningfromthecommandline.
*/
publicstaticvoidmain（String[]args）{
launch（args）;
}}
05
importjavafx.application.Application;
importjavafx.scene.Scene;
importjavafx.scene.layout.Pane;
importjavafx.scene.text.Font;
importjavafx.scene.text.FontPosture;
importjavafx.scene.text.FontWeight;
importjavafx.scene.text.Text;
importjavafx.stage.Stage;
publicclassExercise14_05extendsApplication{
@Override//OverridethestartmethodintheApplicationclass
publicvoidstart（StageprimaryStage）{
Panepane=newPane（）;
Fontfont=Font.font（"TimesNewRoman",FontWeight.BOLD,
FontPosture.REGULAR,35）;
Strings="WELCOMETOJAVA";
doubleradius=80;
for（inti=0;idoublealpha=2*Math.PI*（s.length（）-i）/s.length（）;
Texttxt=newText（radius*Math.cos（alpha）+120,
120-radius*Math.sin（alpha）,s.charAt（i）+""）;
txt.setFont（font）;
txt.setRotate（360*i/s.length（）+90）;
pane.getChildren（）.add（txt）;
}
//Createasceneandplaceitinthestage
Scenescene=newScene（pane,240,240）;
primaryStage.setTitle（"Exercise14_05"）;//Setthestagetitle
primaryStage.setScene（scene）;//Placethesceneinthestage
primaryStage.show（）;//Displaythestage
}
/**
*ThemainmethodisonlyneededfortheIDEwithlimited
*JavaFXsupport.Notneededforrunningfromthecommandline.
*/
publicstaticvoidmain（String[]args）{
launch（args）;
}
}
06
importjavafx.application.Application;
importjavafx.scene.Scene;
importjavafx.scene.layout.Pane;
importjavafx.scene.paint.Color;
importjavafx.stage.Stage;
importjavafx.scene.shape.Rectangle;
publicclassExercise14_06extendsApplication{
@Override//OverridethestartmethodintheApplicationclass
publicvoidstart（StageprimaryStage）{
doubleWIDTH=200;
doubleHEIGHT=200;
Panepane=newPane（）;
for（inti=0;i<8;i++）{
booleanisWhite=i%2==0;
for（intj=0;j<8;j++）{
Rectanglerectangle=newRectangle（i*WIDTH/8,
j*HEIGHT/8,WIDTH/8,HEIGHT/8）;
rectangle.setStroke（Color.BLACK）;
if（isWhite）{
rectangle.setFill（Color.WHITE）;
}
else{
rectangle.setFill（Color.BLACK）;
}
isWhite=!
isWhite;
pane.getChildren（）.add（rectangle）;
}
}
//Createasceneandplaceitinthestage
Scenescene=newScene（pane,WIDTH,HEIGHT）;
primaryStage.setTitle（"Exercise14_06"）;//Setthestagetitle
primaryStage.setScene（scene）;//Placethesceneinthestage
primaryStage.show（）;//Displaythestage
}
/**
*ThemainmethodisonlyneededfortheIDEwithlimited
*JavaFXsupport.Notneededforrunningfromthecommandline.
*/
publicstaticvoidmain（String[]args）{
launch（args）;
}
}
07
importjavafx.application.Application;
importjavafx.geometry.Pos;
importjavafx.scene.Scene;
importjavafx.scene.control.TextField;
importjavafx.scene.layout.GridPane;
importjavafx.stage.Stage;
publicclassExercise14_07extendsApplication{
@Override//OverridethestartmethodintheApplicationclass
publicvoidstart（StageprimaryStage）{
doubleWIDTH=200;
doubleHEIGHT=200;
GridPanepane=newGridPane（）;
for（inti=0;i
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