如何从一个JFrame从另一个接收值并插入JTable

Question

我不同意从一个JFrame接收值并插入到JTable中。

我想知道如何接收一个对象学院准备插入我的JTable。来自我的班级FrameTemp。

班级模型Acadêmico。

package model;
public class Academico {
private String matricula;
private String nome;
private String curso;
private int periodo;
public Academico() {
}
public Academico(String matricula, String nome, String curso, int periodo) {
    this.matricula = matricula;
    this.nome = nome;
    this.curso = curso;
    this.periodo = periodo;
}
public String getMatricula() {
    return matricula;
}
public void setMatricula(String matricula) {
    this.matricula = matricula;
}
public String getNome() {
    return nome;
}
public void setNome(String nome) {
    this.nome = nome;
}
public String getCurso() {
    return curso;
}
public void setCurso(String curso) {
    this.curso = curso;
}
public int getPeriodo() {
    return periodo;
}
public void setPeriodo(int periodo) {
    this.periodo = periodo;
}
}

应接收值的类框架。

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.DefaultTableModel;
public class Frame extends JFrame implements ActionListener {
private static Academico novoAcademico;
private static FrameTemp frameTemporario;
private JTable tabela;
private DefaultTableModel modelo;
private ArrayList<Academico> academicos;
private JButton btAdd, btAtualizar, btDelete;
private JPanel painel, painelGrid;
private BorderLayout borderLayout;
private GridLayout gridLayout;
public Frame(Academico academico) {
    this.setTitle("Acadêmicos Cadastrados");
    this.painel = new JPanel();
    this.painelGrid = new JPanel();
    borderLayout = new BorderLayout();
    gridLayout = new GridLayout(1, 3);
    setContentPane(painel);
    this.setLayout(borderLayout);
    painel.add(painelGrid);
    painelGrid.setLayout(gridLayout);
    this.modelo = new DefaultTableModel();
    this.tabela = new JTable(modelo);
    this.btAdd = new JButton("Insert");
    this.btAdd.setFont(new Font("Verdana", Font.PLAIN, 20));
    this.btAdd.setBackground(Color.BLACK);
    this.btAdd.setForeground(Color.WHITE);
    this.btAtualizar = new JButton("Update");
    this.btAtualizar.setFont(new Font("Verdana", Font.PLAIN, 20));
    this.btAtualizar.setBackground(Color.BLACK);
    this.btAtualizar.setForeground(Color.WHITE);
    this.btDelete = new JButton("Delete");
    this.btDelete.setFont(new Font("Verdana", Font.PLAIN, 20));
    this.btDelete.setBackground(Color.BLACK);
    this.btDelete.setForeground(Color.WHITE);
    this.modelo.addColumn("Matrícula");
    this.modelo.addColumn("Nome");
    this.modelo.addColumn("Curso");
    this.modelo.addColumn("Período");
    this.tabela.getColumnModel().getColumn(0).setPreferredWidth(20);
    this.tabela.getColumnModel().getColumn(1).setPreferredWidth(30);
    this.tabela.getColumnModel().getColumn(2).setPreferredWidth(50);
    this.tabela.getColumnModel().getColumn(3).setPreferredWidth(20);
    this.academicos = new ArrayList<>();
    this.academicos.add(new Academico("123", "Student1", "Information System", 3));
    this.academicos.add(new Academico("234", "Student2", "Science", 5));
    this.academicos.add(new Academico("345", "Student3", "Engineer", 7));
    for (Academico a : this.academicos) {
        this.modelo.addRow(new Object[]{a.getMatricula(), a.getNome(), a.getCurso(), a.getPeriodo()});
    }
    this.painel.add(BorderLayout.NORTH, new JScrollPane(this.tabela));
    this.painel.add(BorderLayout.SOUTH, painelGrid);
    this.painelGrid.add(btAdd);
    this.painelGrid.add(btAtualizar);
    this.painelGrid.add(btDelete);
    this.btDelete.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            int dialog = JOptionPane.YES_NO_OPTION;
            int selRow = tabela.getSelectedRow();
            if (selRow != -1) {
                int resultado = JOptionPane.showConfirmDialog(null, "Deseja realmente excluir essa linha?", "Confirmação", dialog);
                if (resultado == 0) {
                    modelo.removeRow(selRow);
                }
            }
        }
    }
    );
    this.btAdd.addActionListener(this);
    this.pack();
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    this.setVisible(true);
}
public static void main(String[] args) {
    new Frame(novoAcademico);
}
@Override
public void actionPerformed(ActionEvent e) {
    if (e.getSource() == btAdd) {
        Academico academico = new Academico();
        frameTemporario = new FrameTemp();
        frameTemporario.setVisible(true);

        ArrayList<Academico> lista = new ArrayList<>();
        lista.add(new Academico(academico.getMatricula(), academico.getNome(), academico.getCurso(), academico.getPeriodo()));
        for (Academico a : lista) {
            this.modelo.addRow(new Object[]{a.getMatricula(), a.getNome(), a.getCurso(), a.getPeriodo()});
        }

    }
}
}

应发送值的类

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import org.jdesktop.swingx.prompt.PromptSupport;
public class FrameTemp extends JFrame implements ActionListener {
private String title = "Adicionar novo";
private Frame frame;
private ArrayList<Academico> academicos;
private Academico academico;
private JTextField tfMatricula, tfNome, tfCurso, tfPeriodo;
private JButton btConfirmar;
private JPanel painel, painelGrid;
private BorderLayout borderLayout;
private GridLayout gridLayout;
public FrameTemp() {
    this.setTitle(title);
    Container c = getContentPane();
    c.setLayout(new BorderLayout());
    Container c2 = new JPanel();
    c2.setLayout(new GridLayout(1, 4));
    academico = new Academico();
    academicos = new ArrayList<Academico>();
    this.btConfirmar = new JButton("Confirmar");
    this.tfMatricula = new JTextField();
    this.tfMatricula.setToolTipText("Insira sua matrícula aqui");
    PromptSupport.setPrompt("Matrícula", tfMatricula);
    PromptSupport.setFocusBehavior(PromptSupport.FocusBehavior.SHOW_PROMPT, tfMatricula);
    PromptSupport.setFontStyle(Font.BOLD, tfMatricula);
    this.tfNome = new JTextField();
    this.tfNome.setToolTipText("Insira seu nome aqui");
    PromptSupport.setPrompt("Nome", tfNome);
    PromptSupport.setFocusBehavior(PromptSupport.FocusBehavior.SHOW_PROMPT, tfNome);
    PromptSupport.setFontStyle(Font.BOLD, tfNome);
    this.tfCurso = new JTextField();
    this.tfCurso.setToolTipText("Insira seu curso aqui");
    PromptSupport.setPrompt("Curso", tfCurso);
    PromptSupport.setFocusBehavior(PromptSupport.FocusBehavior.SHOW_PROMPT, tfCurso);
    PromptSupport.setFontStyle(Font.BOLD, tfCurso);
    this.tfPeriodo = new JTextField();
    this.tfPeriodo.setToolTipText("Insira seu período aqui");
    PromptSupport.setPrompt("Período", tfPeriodo);
    PromptSupport.setFocusBehavior(PromptSupport.FocusBehavior.SHOW_PROMPT, tfPeriodo);
    PromptSupport.setFontStyle(Font.BOLD, tfPeriodo);
    btConfirmar.addActionListener(this);
    c2.add(tfMatricula);
    c2.add(tfNome);
    c2.add(tfCurso);
    c2.add(tfPeriodo);
    c.add(btConfirmar);
    c.add(BorderLayout.NORTH, c2);
    c.add(BorderLayout.SOUTH, btConfirmar);
    this.setVisible(true);
    this.setSize(500, 300);
    this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
}
@Override
public void actionPerformed(ActionEvent e) {
    this.academico.setMatricula(tfMatricula.getText().toString());
    this.academico.setNome(tfNome.getText());
    this.academico.setCurso(tfCurso.getText());
    this.academico.setPeriodo(Integer.parseInt(tfPeriodo.getText()));
   Frame frame = new Frame(academico);
    this.dispose();
}
}

Answer 1

根据您想要做的事情，应该使用modal对话框，这将导致代码的执行在对话框可见时停止，直到用户不可见为止。

有关详细信息，请参阅如何制作对话框。

例如。。。

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import org.jdesktop.swingx.prompt.PromptSupport;
public class Main {
    public static void main(String[] args) {
        new Main();
    }
    public Main() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
                    ex.printStackTrace();
                }
                StuffINeedToAskYou askYou = new StuffINeedToAskYou();
                int response = JOptionPane.showConfirmDialog(null, askYou, "Adicionar novo", JOptionPane.OK_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE);
                if (response == JOptionPane.OK_OPTION) {
                    Academico academico = askYou.getAcademico();
                }
            }
        });
    }
    public class StuffINeedToAskYou extends JPanel implements ActionListener {
        private String title = "Adicionar novo";
        private ArrayList<Academico> academicos;
        private Academico academico;
        private JTextField tfMatricula, tfNome, tfCurso, tfPeriodo;
        private JButton btConfirmar;
        private JPanel painel, painelGrid;
        private BorderLayout borderLayout;
        private GridLayout gridLayout;
        public StuffINeedToAskYou() {
            setLayout(new BorderLayout());
            Container c2 = new JPanel();
            c2.setLayout(new GridLayout(1, 4));
            academico = new Academico();
            academicos = new ArrayList<Academico>();
            this.btConfirmar = new JButton("Confirmar");
            this.tfMatricula = new JTextField();
            this.tfMatricula.setToolTipText("Insira sua matrícula aqui");
            PromptSupport.setPrompt("Matrícula", tfMatricula);
            PromptSupport.setFocusBehavior(PromptSupport.FocusBehavior.SHOW_PROMPT, tfMatricula);
            PromptSupport.setFontStyle(Font.BOLD, tfMatricula);
            this.tfNome = new JTextField();
            this.tfNome.setToolTipText("Insira seu nome aqui");
            PromptSupport.setPrompt("Nome", tfNome);
            PromptSupport.setFocusBehavior(PromptSupport.FocusBehavior.SHOW_PROMPT, tfNome);
            PromptSupport.setFontStyle(Font.BOLD, tfNome);
            this.tfCurso = new JTextField();
            this.tfCurso.setToolTipText("Insira seu curso aqui");
            PromptSupport.setPrompt("Curso", tfCurso);
            PromptSupport.setFocusBehavior(PromptSupport.FocusBehavior.SHOW_PROMPT, tfCurso);
            PromptSupport.setFontStyle(Font.BOLD, tfCurso);
            this.tfPeriodo = new JTextField();
            this.tfPeriodo.setToolTipText("Insira seu período aqui");
            PromptSupport.setPrompt("Período", tfPeriodo);
            PromptSupport.setFocusBehavior(PromptSupport.FocusBehavior.SHOW_PROMPT, tfPeriodo);
            PromptSupport.setFontStyle(Font.BOLD, tfPeriodo);
            btConfirmar.addActionListener(this);
            c2.add(tfMatricula);
            c2.add(tfNome);
            c2.add(tfCurso);
            c2.add(tfPeriodo);
            add(btConfirmar);
            add(BorderLayout.NORTH, c2);
            add(BorderLayout.SOUTH, btConfirmar);
        }
        public Academico getAcademico() {
            return academico;
        }
        @Override
        public void actionPerformed(ActionEvent e) {
            this.academico.setMatricula(tfMatricula.getText().toString());
            this.academico.setNome(tfNome.getText());
            this.academico.setCurso(tfCurso.getText());
            this.academico.setPeriodo(Integer.parseInt(tfPeriodo.getText()));
        }
    }
    public class Academico {
        private String matricula;
        private String nome;
        private String curso;
        private int periodo;
        public Academico() {
        }
        public Academico(String matricula, String nome, String curso, int periodo) {
            this.matricula = matricula;
            this.nome = nome;
            this.curso = curso;
            this.periodo = periodo;
        }
        public String getMatricula() {
            return matricula;
        }
        public void setMatricula(String matricula) {
            this.matricula = matricula;
        }
        public String getNome() {
            return nome;
        }
        public void setNome(String nome) {
            this.nome = nome;
        }
        public String getCurso() {
            return curso;
        }
        public void setCurso(String curso) {
            this.curso = curso;
        }
        public int getPeriodo() {
            return periodo;
        }
        public void setPeriodo(int periodo) {
            this.periodo = periodo;
        }
    }
}

Answer 2

我解决了放入一个新方法的问题，Click事件的部分也是错误的。

我没有改变任何学术类的东西。

解决方案

类帧

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
public class Frame extends JFrame implements ActionListener {
private static Academico novoAcademico;
private static FrameTemp frameTemporario;
private JTable tabela;
private static DefaultTableModel modelo;
private ArrayList<Academico> academicos;
private JButton btAdd, btAtualizar, btDelete;
private JPanel painel, painelGrid;
private BorderLayout borderLayout;
private GridLayout gridLayout;
public Frame(Academico academico) {
    this.setTitle("Acadêmicos Cadastrados");
    this.painel = new JPanel();
    this.painelGrid = new JPanel();
    borderLayout = new BorderLayout();
    gridLayout = new GridLayout(1, 3);
    setContentPane(painel);
    this.setLayout(borderLayout);
    painel.add(painelGrid);
    painelGrid.setLayout(gridLayout);
    this.modelo = new DefaultTableModel();
    this.tabela = new JTable(modelo);
    this.btAdd = new JButton("Insert");
    this.btAdd.setFont(new Font("Verdana", Font.PLAIN, 20));
    this.btAdd.setBackground(Color.BLACK);
    this.btAdd.setForeground(Color.WHITE);
    this.btAtualizar = new JButton("Update");
    this.btAtualizar.setFont(new Font("Verdana", Font.PLAIN, 20));
    this.btAtualizar.setBackground(Color.BLACK);
    this.btAtualizar.setForeground(Color.WHITE);
    this.btDelete = new JButton("Delete");
    this.btDelete.setFont(new Font("Verdana", Font.PLAIN, 20));
    this.btDelete.setBackground(Color.BLACK);
    this.btDelete.setForeground(Color.WHITE);
    this.modelo.addColumn("Matrícula");
    this.modelo.addColumn("Nome");
    this.modelo.addColumn("Curso");
    this.modelo.addColumn("Período");
    this.tabela.getColumnModel().getColumn(0).setPreferredWidth(20);
    this.tabela.getColumnModel().getColumn(1).setPreferredWidth(30);
    this.tabela.getColumnModel().getColumn(2).setPreferredWidth(50);
    this.tabela.getColumnModel().getColumn(3).setPreferredWidth(20);
    this.academicos = new ArrayList<>();
    this.academicos.add(new Academico("123", "Fredson", "Sistemas de Informação", 3));
    this.academicos.add(new Academico("234", "Vieira", "Ciência da Computação", 5));
    this.academicos.add(new Academico("345", "Costa", "Engenharia da Computação", 7));
    for (Academico a : this.academicos) {
        this.modelo.addRow(new Object[]{a.getMatricula(), a.getNome(), a.getCurso(), a.getPeriodo()});
    }
    this.painel.add(BorderLayout.NORTH, new JScrollPane(this.tabela));
    this.painel.add(BorderLayout.SOUTH, painelGrid);
    this.painelGrid.add(btAdd);
    this.painelGrid.add(btAtualizar);
    this.painelGrid.add(btDelete);
    this.btDelete.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            int dialog = JOptionPane.YES_NO_OPTION;
            int selRow = tabela.getSelectedRow();
            if (selRow != -1) {
                int resultado = JOptionPane.showConfirmDialog(null, "Deseja realmente excluir essa linha?", "Confirmação", dialog);
                if (resultado == 0) {
                    modelo.removeRow(selRow);
                    JOptionPane.showMessageDialog(null, "Registro excluído com sucesso!" + "nTotal de registros existentes: " + modelo.getRowCount());
                }
            }
        }
    }
    );
    this.btAdd.addActionListener(this);
    this.pack();
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    this.setVisible(true);
}
public static void main(String[] args) {
    new Frame(novoAcademico);
}
@Override
public void actionPerformed(ActionEvent e) {
    if (e.getSource() == btAdd) {
        frameTemporario = new FrameTemp();
        frameTemporario.setVisible(true);
    }
}
public static void addAcademico(Academico academico) {
    academico = frameTemporario.getAcademico();
    ArrayList<Academico> lista = new ArrayList<>();
    lista.add(new Academico(academico.getMatricula(), academico.getNome(), academico.getCurso(), academico.getPeriodo()));
    for (Academico a : lista) {
        System.out.println("Lista: " + lista.size());
        modelo.addRow(new Object[]{a.getMatricula(), a.getNome(), a.getCurso(), a.getPeriodo()});
        System.out.println(a.getMatricula() + "n" + a.getNome() + "n" + a.getCurso() + "n" + a.getPeriodo());
    }
}
}

Class FrameTemp

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import org.jdesktop.swingx.prompt.PromptSupport;
/**
 *
 * @author rafaelcarlos
 */
public class FrameTemp extends JFrame implements ActionListener {
private String title = "Adicionar novo";
private ArrayList<Academico> academicos;
private static Academico academico;
private JTextField tfMatricula, tfNome, tfCurso, tfPeriodo;
private JButton btConfirmar;
public FrameTemp() {
    this.setTitle(title);
    Container c = getContentPane();
    c.setLayout(new BorderLayout());
    Container c2 = new JPanel();
    c2.setLayout(new GridLayout(1, 4));
    academico = new Academico();
    academicos = new ArrayList<Academico>();
    this.btConfirmar = new JButton("Confirmar");
    this.tfMatricula = new JTextField();
    this.tfMatricula.setToolTipText("Insira sua matrícula aqui");
    PromptSupport.setPrompt("Matrícula", tfMatricula);
    PromptSupport.setFocusBehavior(PromptSupport.FocusBehavior.SHOW_PROMPT, tfMatricula);
    PromptSupport.setFontStyle(Font.BOLD, tfMatricula);
    this.tfNome = new JTextField();
    this.tfNome.setToolTipText("Insira seu nome aqui");
    PromptSupport.setPrompt("Nome", tfNome);
    PromptSupport.setFocusBehavior(PromptSupport.FocusBehavior.SHOW_PROMPT, tfNome);
    PromptSupport.setFontStyle(Font.BOLD, tfNome);
    this.tfCurso = new JTextField();
    this.tfCurso.setToolTipText("Insira seu curso aqui");
    PromptSupport.setPrompt("Curso", tfCurso);
    PromptSupport.setFocusBehavior(PromptSupport.FocusBehavior.SHOW_PROMPT, tfCurso);
    PromptSupport.setFontStyle(Font.BOLD, tfCurso);
    this.tfPeriodo = new JTextField();
    this.tfPeriodo.setToolTipText("Insira seu período aqui");
    PromptSupport.setPrompt("Período", tfPeriodo);
    PromptSupport.setFocusBehavior(PromptSupport.FocusBehavior.SHOW_PROMPT, tfPeriodo);
    PromptSupport.setFontStyle(Font.BOLD, tfPeriodo);
    btConfirmar.addActionListener(this);
    c2.add(tfMatricula);
    c2.add(tfNome);
    c2.add(tfCurso);
    c2.add(tfPeriodo);
    c.add(btConfirmar);
    c.add(BorderLayout.NORTH, c2);
    c.add(BorderLayout.SOUTH, btConfirmar);
    this.setVisible(true);
    this.setSize(500, 300);
    this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
}
//Metodo que você vai usar para recuperar os dados na outra classe
public static Academico getAcademico() {
    return FrameTemp.academico;
}
@Override
public void actionPerformed(ActionEvent e) {
    this.academico.setMatricula(tfMatricula.getText());
    this.academico.setNome(tfNome.getText());
    this.academico.setCurso(tfCurso.getText());
    this.academico.setPeriodo(Integer.parseInt(tfPeriodo.getText()));
    ;
    Frame.addAcademico(academico);
    this.dispose();
}
}