java GUI 窗体打开其他窗体 onclick 按钮

Question

当从 form1 打开 form2 单击按钮时，我正在尝试执行此操作。听起来很简单，但我找不到任何方法来做到这一点。我正在使用 java intellij。当我使用 netbeans 和 swing 时，我这样做的是:“Form2 form2=new Form2();

form2.setVisible(true);

处置()； ”

表格1(主):

public class Main {
    private JButton b_show;
    private JButton b_Add;
    private JPanel jp_main;


    public Main() {

        b_show.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent actionEvent) {

            }
        });
    }


    public static void main(String[]args){
        JFrame frame=new JFrame();
        frame.setContentPane(new Main().jp_main);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300,300);
        frame.setVisible(true);


    }

}

表格2(显示):

public class Show {
    private JButton b_back;
    public JPanel jpanelmain;


    public Show() {
        Show show=new Show();
        geriButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent actionEvent) {

            }
        });
    }

    public static void main(String[]args){
        JFrame frame=new JFrame();
        frame.setContentPane(new Show().jpanelmain);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300,300);
        frame.setVisible(true);

    }

}

有人可以帮助我吗？

当点击b_show时打开form2(Show)。

Answer 1

这是一个mcve展示它

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class Main {

    private final JButton b_show;
    private final JPanel jp_main;

    public Main() {
        jp_main = new JPanel();
        b_show = new JButton("Show");
        b_show.addActionListener(actionEvent -> {
            new Show();
        });
        jp_main.add(b_show);
    }
    public static void main(String[]args){
        JFrame frame=new JFrame();
        frame.setContentPane(new Main().jp_main);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300,300);
        frame.setVisible(true);
    }
}

class Show {
    private JButton b_back;
    public JPanel jpanelmain;


    public Show() {
        createAndShowGui();
    }

    void createAndShowGui(){

        JFrame frame=new JFrame();
        frame.setLocationRelativeTo(null);
        jpanelmain = new JPanel();
        b_back = new JButton("Back");
        jpanelmain.add(b_back);
        frame.setContentPane(jpanelmain);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300,300);
        frame.setVisible(true);
    }
} 

但是，请阅读The Use of Multiple JFrames: Good or Bad Practice?