必须根据固定类型和矩形板的纵横比来确定临界剪应力。
让我们从设置界面开始，我们将使用Scene Builder来提供帮助。
让我们创建一个大小为900x600的工作区。
让我们创建几个具有大小和边距的容器（起初，我只是在一张纸上做过标记，但是那一块已经丢失了）。
接下来，让我们看一下容器的内部。
- Button Button
让我们为按钮分配一个唯一的名称，然后为我们将在其中实现代码的方法的名称
- TextField
让我们为文本字段指定一个唯一的名称。输入/输出数值时需要该字段。我们还将在该字段中添加其他名称，当用符号输入时该名称将消失
- 标签
字段我使用标签字段来表示单元格。
- 图像字段
在这里，我们指定位于项目中的现有图像的名称
- CheckBox字段
在这里我们指定一个唯一的名称。这对于确定紧固类型是必要的
sample.fxml文件的最终代码
列出sample.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.CheckBox?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.image.Image?>
<?import javafx.scene.image.ImageView?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.layout.Pane?>
<?import javafx.scene.layout.VBox?>
<Pane prefHeight="600.0" prefWidth="900.0" xmlns="http://javafx.com/javafx/8.0.112" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.Controller">
<children>
<Button fx:id="button" layoutX="40.0" layoutY="200.0" mnemonicParsing="false" onAction="#showDateTime" prefHeight="71.0" prefWidth="528.0" text="=" />
<VBox layoutX="312.0" layoutY="20.0" minHeight="-Infinity" minWidth="-Infinity" prefHeight="200.0" prefWidth="280.0" GridPane.columnIndex="1">
<children>
<TextField fx:id="myTextField1" promptText=" " />
<TextField fx:id="myTextField2" promptText=" b ( )" />
<TextField fx:id="myTextField3" promptText="" />
<TextField fx:id="myTextField4" prefHeight="25.0" prefWidth="280.0" promptText=" " />
<TextField fx:id="myTextField6" prefHeight="25.0" prefWidth="280.0" promptText=" " />
</children>
</VBox>
<VBox layoutX="611.0" prefHeight="562.0" prefWidth="271.0" GridPane.columnIndex="21">
<children>
<ImageView fx:id="image" fitHeight="116.0" fitWidth="174.0" pickOnBounds="true" preserveRatio="true">
<image>
<Image url="@Zadelka1.PNG" />
</image></ImageView>
<CheckBox fx:id="checkbox1" mnemonicParsing="false" text=" " />
<ImageView fitHeight="122.0" fitWidth="237.0" layoutX="30.0" pickOnBounds="true" preserveRatio="true">
<image>
<Image url="@Zadelka2.PNG" />
</image></ImageView>
<CheckBox fx:id="checkbox2" mnemonicParsing="false" text=" " />
<ImageView fitHeight="127.0" fitWidth="272.0" pickOnBounds="true" preserveRatio="true">
<image>
<Image url="@Zadelka3.PNG" />
</image></ImageView>
<CheckBox fx:id="checkbox3" mnemonicParsing="false" text=" " />
<ImageView fitHeight="129.0" fitWidth="392.0" pickOnBounds="true" preserveRatio="true">
<image>
<Image url="@Zadelka4.PNG" />
</image></ImageView>
<CheckBox fx:id="checkbox4" mnemonicParsing="false" text=" " />
</children>
</VBox>
<VBox layoutX="20.0" layoutY="20.0" minHeight="-Infinity" minWidth="-Infinity" prefHeight="200.0" prefWidth="262.0">
<children>
<Label prefHeight="25.0" prefWidth="185.0" text=" a" />
<Label prefHeight="25.0" prefWidth="262.0" text=" b ( )" />
<Label prefHeight="25.0" prefWidth="188.0" text="" />
<Label prefHeight="25.0" prefWidth="186.0" text=" E" />
<Label prefHeight="25.0" prefWidth="188.0" text=" " />
</children>
</VBox>
<VBox layoutX="312.0" layoutY="311.0" prefHeight="200.0" prefWidth="280.0">
<children>
<TextField fx:id="myTextField5" prefHeight="25.0" prefWidth="280.0" promptText=" ()" />
<TextField fx:id="myTextField7" prefHeight="25.0" prefWidth="280.0" promptText=" " />
</children>
</VBox>
<VBox layoutX="20.0" layoutY="310.0" prefHeight="200.0" prefWidth="262.0">
<children>
<Label prefHeight="25.0" prefWidth="260.0" text=" " />
<Label prefHeight="25.0" prefWidth="187.0" text=" " />
</children>
</VBox>
</children>
</Pane>创建Main类的main方法
主班
package sample;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class Main extends Application {
@Override
public void start(Stage primaryStage) {
try {
// sample.fxml( ).
Parent root = FXMLLoader.load(getClass().getResource("sample.fxml"));
primaryStage.setTitle(" ");
primaryStage.setScene(new Scene(root));
primaryStage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
launch(args);
}
}
创建Controller类时，最重要的部分带有注释
控制器类
ackage sample;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Button;
import javafx.scene.control.CheckBox;
import javafx.scene.control.TextField;
import javafx.stage.Stage;
import java.net.URL;
import java.util.ResourceBundle;
import static java.lang.Double.NaN;
import static java.lang.Double.parseDouble;
import static java.lang.String.valueOf;
public class Controller extends TextField implements Initializable {
//
@FXML
private TextField myTextField4;
@FXML
private TextField myTextField1;
@FXML
private TextField myTextField2;
@FXML
private TextField myTextField3;
@FXML
private TextField myTextField5;
@FXML
private TextField myTextField6;
@FXML
private TextField myTextField7;
@FXML
private CheckBox checkbox1;
@FXML
private CheckBox checkbox2;
@FXML
private CheckBox checkbox3;
@FXML
private CheckBox checkbox4;
private double k;
private double krit;
private double zapas;
@Override
public void initialize(URL location, ResourceBundle resources) {
//
myTextField1.setTextFormatter(new AlphaNumericTextFormatter());
myTextField2.setTextFormatter(new AlphaNumericTextFormatter());
myTextField3.setTextFormatter(new AlphaNumericTextFormatter());
myTextField4.setTextFormatter(new AlphaNumericTextFormatter());
//myTextField6.setTextFormatter(new AlphaNumericTextFormatter());
}
public void showDateTime() throws Exception {
//
Double a = parseDouble(myTextField1.getText());
Double b = parseDouble(myTextField2.getText());
Double t = parseDouble(myTextField3.getText());
Double e = parseDouble(myTextField4.getText());
Double c = b / a;
// CheckBox
if (checkbox1.isSelected()) {
if (c <= 0.1) {
k = 8;
} else if ((c > 0.1) && (c <= 0.15)) {
k = 8.5;
} else if ((c > 0.15) && (c <= 0.2)) {
k = 8.8;
} else if ((c > 0.2) && (c <= 0.25)) {
k = 9;
} else if ((c > 0.25) && (c <= 0.30)) {
k = 9.2;
} else if ((c > 0.3) && (c <= 0.35)) {
k = 9.5;
} else if ((c > 0.35) && (c <= 0.40)) {
k = 9.8;
} else if ((c > 0.40) && (c <= 0.45)) {
k = 10.3;
} else if ((c > 0.45) && (c <= 0.50)) {
k = 10.5;
} else if ((c > 0.5) && (c <= 0.55)) {
k = 10.8;
} else if ((c > 0.55) && (c <= 0.6)) {
k = 11;
} else if ((c > 0.6) && (c <= 0.65)) {
k = 11.5;
} else if ((c > 0.65) && (c <= 0.7)) {
k = 11.8;
} else if ((c > 0.7) && (c <= 0.75)) {
k = 12;
} else if ((c > 0.75) && (c <= 0.8)) {
k = 12.5;
} else if ((c > 0.8) && (c <= 0.85)) {
k = 12.8;
} else if ((c > 0.85) && (c <= 0.9)) {
k = 13;
} else if ((c > 0.9) && (c <= 0.95)) {
k = 13.5;
} else if ((c > 0.95) && (c <= 1)) {
k = 14;
}
krit = (k * e) / (Math.pow((b / t), 2));
String d = valueOf(krit);
//
myTextField5.setText(d);
}
else if (checkbox2.isSelected()) {
if (c <= 0.1) {
k = 8;
} else if ((c > 0.1) && (c <= 0.15)) {
k = 8.2;
} else if ((c > 0.15) && (c <= 0.2)) {
k = 8.4;
} else if ((c > 0.2) && (c <= 0.25)) {
k = 8.5;
} else if ((c > 0.25) && (c <= 0.30)) {
k = 8.6;
} else if ((c > 0.3) && (c <= 0.35)) {
k = 8.7;
} else if ((c > 0.35) && (c <= 0.40)) {
k = 8.9;
} else if ((c > 0.40) && (c <= 0.45)) {
k = 9;
} else if ((c > 0.45) && (c <= 0.50)) {
k = 9.2;
} else if ((c > 0.5) && (c <= 0.55)) {
k = 9.4;
} else if ((c > 0.55) && (c <= 0.6)) {
k = 9.5;
} else if ((c > 0.6) && (c <= 0.65)) {
k = 9.7;
} else if ((c > 0.65) && (c <= 0.7)) {
k = 10;
} else if ((c > 0.7) && (c <= 0.75)) {
k = 10;
} else if ((c > 0.75) && (c <= 0.8)) {
k = 10.2;
} else if ((c > 0.8) && (c <= 0.85)) {
k = 10.5;
} else if ((c > 0.85) && (c <= 0.9)) {
k = 10.6;
} else if ((c > 0.9) && (c <= 0.95)) {
k = 11;
} else if ((c > 0.95) && (c <= 1)) {
k = 11;
}
krit = (k * e) / (Math.pow((b / t), 2));
String d = valueOf(krit);
myTextField5.setText(d);
}
else if (checkbox3.isSelected()) {
if (c <= 0.1) {
k = 4.9;
} else if ((c > 0.1) && (c <= 0.15)) {
k = 5.1;
} else if ((c > 0.15) && (c <= 0.2)) {
k = 5.2;
} else if ((c > 0.2) && (c <= 0.25)) {
k = 5.5;
} else if ((c > 0.25) && (c <= 0.30)) {
k = 5.8;
} else if ((c > 0.3) && (c <= 0.35)) {
k = 6;
} else if ((c > 0.35) && (c <= 0.40)) {
k = 6.2;
} else if ((c > 0.40) && (c <= 0.45)) {
k = 6.5;
} else if ((c > 0.45) && (c <= 0.50)) {
k = 6.9;
} else if ((c > 0.5) && (c <= 0.55)) {
k = 7;
} else if ((c > 0.55) && (c <= 0.6)) {
k = 7.5;
} else if ((c > 0.6) && (c <= 0.65)) {
k = 8;
} else if ((c > 0.65) && (c <= 0.7)) {
k = 8.2;
} else if ((c > 0.7) && (c <= 0.75)) {
k = 8.5;
} else if ((c > 0.75) && (c <= 0.8)) {
k = 9.1;
} else if ((c > 0.8) && (c <= 0.85)) {
k = 9.5;
} else if ((c > 0.85) && (c <= 0.9)) {
k = 10;
} else if ((c > 0.9) && (c <= 0.95)) {
k = 10.5;
} else if ((c > 0.95) && (c <= 1)) {
k = 11;
}
krit = (k * e) / (Math.pow((b / t), 2));
String d = valueOf(krit);
myTextField5.setText(d);
}
else if (checkbox4.isSelected()) {
if (c <= 0.1) {
k = 4.8;
} else if ((c > 0.1) && (c <= 0.15)) {
k = 5;
} else if ((c > 0.15) && (c <= 0.2)) {
k = 5;
} else if ((c > 0.2) && (c <= 0.25)) {
k = 5.1;
} else if ((c > 0.25) && (c <= 0.30)) {
k = 5.2;
} else if ((c > 0.3) && (c <= 0.35)) {
k = 5.4;
} else if ((c > 0.35) && (c <= 0.40)) {
k = 5.5;
} else if ((c > 0.40) && (c <= 0.45)) {
k = 5.6;
} else if ((c > 0.45) && (c <= 0.50)) {
k = 5.9;
} else if ((c > 0.5) && (c <= 0.55)) {
k = 6;
} else if ((c > 0.55) && (c <= 0.6)) {
k = 6.2;
} else if ((c > 0.6) && (c <= 0.65)) {
k = 6.5;
} else if ((c > 0.65) && (c <= 0.7)) {
k = 6.7;
} else if ((c > 0.7) && (c <= 0.75)) {
k = 7;
} else if ((c > 0.75) && (c <= 0.8)) {
k = 7.1;
} else if ((c > 0.8) && (c <= 0.85)) {
k = 7.4;
} else if ((c > 0.85) && (c <= 0.9)) {
k = 7.8;
} else if ((c > 0.9) && (c <= 0.95)) {
k = 8;
} else if ((c > 0.95) && (c <= 1)) {
k = 8.3;
}
krit = (k * e) / (Math.pow((b / t), 2));
String d = valueOf(krit);
myTextField5.setText(d);
}
Double f = parseDouble(myTextField6.getText());
zapas = krit/f;
String g = valueOf(zapas);
myTextField7.setText(g);
}
}创建两个用于应用数据输入过滤器的类（不包括字母，以及限制输入/输出数量的能力）。解决方案不是我的，而是我在stackoverflow上发现的，在我提出的所有解决方案中，这似乎是最简单，最容易理解的。
AlphaNumericTextFormatter类
AlphaNumericTextFormatter类
public class AlphaNumericTextFormatter extends TextFormatter<String> {
/** The Constant ALPHA_NUMERIC_ONLY. */
//private static final String ALPHA_NUMERIC_ONLY = "^[a-zA-Z0-9]*$";
/** MAKE NUMERIC ONLY **/
private static final String DIGITS_ONLY = "^[0-9.]*$";
/**
* Instantiates a new alpha numeric text formatter.
*/
public AlphaNumericTextFormatter() {
super(applyFilter(null));
}
/**
* Instantiates a new alpha numeric text formatter.
*
* @param maxLength
* the max length
*/
public AlphaNumericTextFormatter(int maxLength) {
super(applyFilter(new MaxLengthTextFormatter(maxLength).getFilter()));
}
/**
* Apply filter.
*
* @param filter
* the filter
* @return the unary operator
*/
private static UnaryOperator<Change> applyFilter(UnaryOperator<Change> filter) {
return change -> {
if (change.getControlNewText() != null && change.getControlNewText().matches(DIGITS_ONLY)) {
if (filter != null) {
filter.apply(change);
}
return change;
}
return null;
};
}
}
MaxLengthTextFormatter类
代码清单
package sample;
import java.util.function.UnaryOperator;
import javafx.scene.control.TextFormatter;
import javafx.scene.control.TextFormatter.Change;
public class MaxLengthTextFormatter extends TextFormatter<String> {
private int maxLength;
public MaxLengthTextFormatter(final int maxLength) {
super(new UnaryOperator<Change>() {
public Change apply(Change change) {
if (change.isDeleted()) {
if (change.getControlNewText().length() > maxLength) {
change.setText(change.getText().substring(0, maxLength));
}
} else if (change.getControlText().length() + change.getText().length() >= maxLength) {
int maxPos = maxLength - change.getControlText().length();
change.setText(change.getText().substring(0, maxPos));
}
return change;
}
});
this.maxLength = maxLength;
}
public int getMaxLength() {
return this.maxLength;
}
}
好了，在创建jar文件的最后
就这样。现在该文件已准备就绪，可以在装有Java的任何计算机上运行。