[英]having trouble with making custom JOptionPane dialogs
因此,在您說我應該做更多研究之前,我一直在設法解決這一問題已有大約一周的時間,這是我的最后選擇。 繼續,我試圖創建一個帶有多個按鈕的對話框。 一個計算器。 雖然,我幾乎不知道javax.swing的任何方法 。 我只知道JOptionPane方法和一些JTextField 。 請盡可能給我一個提示或一些提示,以便我自己解決。 謝謝你的時間。
JOptionPane
沒有您要的功能。 如果您想在對話框中添加更多按鈕,則需要其他組件。 這是計算器的骨架。 您必須添加邏輯:
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import javax.swing.border.EmptyBorder;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
public class Calculator extends JDialog {
private final JPanel contentPanel = new JPanel();
private JTextField textField;
public static void main(String[] args) {
try {
Calculator dialog = new Calculator();
dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
dialog.setVisible(true);
} catch (Exception e) {
}
}
public Calculator() {
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent arg0) {
JOptionPane.showMessageDialog(null, "Bye");
}
});
setBounds(100, 100, 348, 234);
getContentPane().setLayout(new BorderLayout());
contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
getContentPane().add(contentPanel, BorderLayout.CENTER);
contentPanel.setLayout(null);
{
textField = new JTextField();
textField.setHorizontalAlignment(SwingConstants.RIGHT);
textField.setBounds(12, 13, 323, 19);
contentPanel.add(textField);
textField.setColumns(10);
}
JButton button_8 = new JButton("8");
button_8.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("8 pressed");
}
});
button_8.setBounds(79, 46, 55, 25);
contentPanel.add(button_8);
JButton button_9 = new JButton("9");
button_9.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("9 pressed");
}
});
button_9.setBounds(146, 46, 55, 25);
contentPanel.add(button_9);
JButton button_4 = new JButton("4");
button_4.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("4 pressed");
}
});
button_4.setBounds(12, 83, 55, 25);
contentPanel.add(button_4);
JButton button_5 = new JButton("5");
button_5.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("5 pressed");
}
});
button_5.setBounds(79, 83, 55, 25);
contentPanel.add(button_5);
JButton button_6 = new JButton("6");
button_6.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("6 pressed");
}
});
button_6.setBounds(146, 83, 55, 25);
contentPanel.add(button_6);
JButton button_1 = new JButton("1");
button_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("1 pressed");
}
});
button_1.setBounds(12, 120, 55, 25);
contentPanel.add(button_1);
JButton button_2 = new JButton("2");
button_2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("2 pressed");
}
});
button_2.setBounds(79, 120, 55, 25);
contentPanel.add(button_2);
JButton button_3 = new JButton("3");
button_3.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("3 pressed");
}
});
button_3.setBounds(146, 120, 55, 25);
contentPanel.add(button_3);
JButton button_0 = new JButton("0");
button_0.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("0 pressed");
}
});
button_0.setBounds(12, 157, 122, 25);
contentPanel.add(button_0);
JButton button_point = new JButton(".");
button_point.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText(". pressed");
}
});
button_point.setBounds(146, 157, 55, 25);
contentPanel.add(button_point);
JButton button_divide = new JButton("/");
button_divide.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("/ pressed");
}
});
button_divide.setBounds(213, 46, 55, 25);
contentPanel.add(button_divide);
JButton button_multiply = new JButton("*");
button_multiply.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("* pressed");
}
});
button_multiply.setBounds(213, 83, 55, 25);
contentPanel.add(button_multiply);
JButton button_subtract = new JButton("-");
button_subtract.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("- pressed");
}
});
button_subtract.setBounds(213, 120, 55, 25);
contentPanel.add(button_subtract);
JButton button_sum = new JButton("+");
button_sum.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("+ pressed");
}
});
button_sum.setBounds(213, 157, 55, 25);
contentPanel.add(button_sum);
JButton button_back = new JButton("<");
button_back.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("Back pressed");
}
});
button_back.setBounds(280, 46, 55, 25);
contentPanel.add(button_back);
JButton button_clear = new JButton("C");
button_clear.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("Clear pressed");
}
});
button_clear.setBounds(280, 83, 55, 25);
contentPanel.add(button_clear);
JButton button_equals = new JButton("=");
button_equals.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("= pressed");
}
});
button_equals.setBounds(280, 120, 55, 62);
contentPanel.add(button_equals);
JButton button_7 = new JButton("7");
button_7.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText("7 pressed");
}
});
button_7.setBounds(12, 46, 55, 25);
contentPanel.add(button_7);
{
JPanel buttonPane = new JPanel();
buttonPane.setLayout(new FlowLayout(FlowLayout.RIGHT));
getContentPane().add(buttonPane, BorderLayout.SOUTH);
}
}
}
希望能幫助到你。 線索:這是使用WindowBuiler for Eclipse制作的。 您也應該嘗試一下。
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