用Javafx写学生管理系统录入学生管理的程序

好的，下面是一个简单的JavaFX学生管理系统的实现，包括学生信息的录入和显示：

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;

public class StudentManagementSystem extends Application {

    private static final int WINDOW_WIDTH = 800;
    private static final int WINDOW_HEIGHT = 600;

    private VBox root;
    private GridPane inputPane;
    private Label titleLabel;
    private Label nameLabel;
    private TextField nameField;
    private Label idLabel;
    private TextField idField;
    private Label gradeLabel;
    private TextField gradeField;
    private Button addButton;
    private TableView<Student> studentTable;

    private StudentDataModel studentDataModel;

    @Override
    public void start(Stage primaryStage) throws Exception {
        studentDataModel = new StudentDataModel();

        initUI();

        Scene scene = new Scene(root, WINDOW_WIDTH, WINDOW_HEIGHT);
        primaryStage.setTitle("学生管理系统");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    private void initUI() {
        root = new VBox();
        root.setSpacing(10);
        root.setPadding(new Insets(10));
        root.setAlignment(Pos.TOP_CENTER);

        titleLabel = new Label("学生管理系统");
        titleLabel.setFont(new Font(24));
        root.getChildren().add(titleLabel);

        inputPane = new GridPane();
        inputPane.setHgap(10);
        inputPane.setVgap(10);
        inputPane.setAlignment(Pos.CENTER);
        nameLabel = new Label("姓名:");
        nameField = new TextField();
        idLabel = new Label("学号:");
        idField = new TextField();
        gradeLabel = new Label("成绩:");
        gradeField = new TextField();
        addButton = new Button("添加学生");
        addButton.setOnAction(event -> {
            Student student = new Student(nameField.getText(), idField.getText(), Double.parseDouble(gradeField.getText()));
            studentDataModel.addStudent(student);
            nameField.clear();
            idField.clear();
            gradeField.clear();
        });

        inputPane.addRow(0, nameLabel, nameField);
        inputPane.addRow(1, idLabel, idField);
        inputPane.addRow(2, gradeLabel, gradeField);
        inputPane.add(addButton, 0, 3, 2, 1);

        root.getChildren().add(inputPane);

        studentTable = new TableView<>();
        TableColumn<Student, String> nameColumn = new TableColumn<>("姓名");
        nameColumn.setCellValueFactory(cellData -> cellData.getValue().nameProperty());
        TableColumn<Student, String> idColumn = new TableColumn<>("学号");
        idColumn.setCellValueFactory(cellData -> cellData.getValue().idProperty());
        TableColumn<Student, Double> gradeColumn = new TableColumn<>("成绩");
        gradeColumn.setCellValueFactory(cellData -> cellData.getValue().gradeProperty().asObject());
        studentTable.getColumns().addAll(nameColumn, idColumn, gradeColumn);
        studentTable.setItems(studentDataModel.getStudentList());

        HBox tableBox = new HBox();
        tableBox.setSpacing(10);
        tableBox.setAlignment(Pos.CENTER);
        tableBox.getChildren().add(studentTable);

        root.getChildren().add(tableBox);
    }

    public static void main(String[] args) {
        launch(args);
    }
}

class Student {
    private String name;
    private String id;
    private double grade;

    public Student(String name, String id, double grade) {
        this.name = name;
        this.id = id;
        this.grade = grade;
    }

    public String getName() {
        return name;
    }

    public String getId() {
        return id;
    }

    public double getGrade() {
        return grade;
    }

    public void setName(String name) {
        this.name = name;
    }

    public void setId(String id) {
        this.id = id;
    }

    public void setGrade(double grade) {
        this.grade = grade;
    }

    public StringProperty nameProperty() {
        return new SimpleStringProperty(name);
    }

    public StringProperty idProperty() {
        return new SimpleStringProperty(id);
    }

    public DoubleProperty gradeProperty() {
        return new SimpleDoubleProperty(grade);
    }
}

class StudentDataModel {
    private ObservableList<Student> studentList;

    public StudentDataModel() {
        studentList = FXCollections.observableArrayList();
    }

    public void addStudent(Student student) {
        studentList.add(student);
    }

    public ObservableList<Student> getStudentList() {
        return studentList;
    }
}

这个程序界面简单，功能齐全，可以添加学生信息并在表格中显示。你可以根据需要进行修改和扩展。