.addComponent(jRadioButton3) .addComponent(jRadioButton4) .addComponent(jRadioButton5)) .addContainerGap()) .addGroup(jpanellayout.createSequentialGroup() .addGap(99,99,99) .addComponent(jButton1,javax.swing.GroupLayout.PREFERRED_SIZE,114,javax.swing.GroupLayout.PREFERRED_SIZE) .addContainerGap(110,简称最大值)) .addGroup(jpanellayout.createSequentialGroup() .addGap(69,69,69) .addComponent(jLabel1) .addGap(92,92,92)) .addGroup(jpanellayout.createSequentialGroup() .addGap(55,55,55) .addComponent(jPanel2,javax.swing.GroupLayout.PREFERRED\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.PREFERRED\u SIZE) .addContainerGap(80,简称最大值)) ); jPanel1Layout.setVerticalGroup( jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(javax.swing.GroupLayout.Alignment.TRAILING,jPanel1Layout.createSequentialGroup() .addContainerGap() .addComponent(jLabel1) .addGap(29,29,29) .addComponent(jPanel2,javax.swing.GroupLayout.PREFERRED\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.PREFERRED\u SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED,47,Short.MAX_值) .addComponent(jcombox1,javax.swing.GroupLayout.PREFERRED\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.PREFERRED\u SIZE) .addGap(26,26,26) .addComponent(jRadioButton1) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addComponent(jRadioButton2) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addComponent(jRadioButton3) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addComponent(jRadioButton4) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addComponent(jRadioButton5) .addGap(18,18,18) .addComponent(jButton1) .addGap(29,29,29)) ); javax.swing.GroupLayout=newjavax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(布局); layout.setHorizontalGroup( createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addContainerGap() .addComponent(jPanel1,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u值) .addContainerGap()) ); layout.setVerticalGroup( createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addContainerGap() .addComponent(jPanel1,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u值) .addContainerGap()) ); 包装(); }// 私有void jButton1ActionPerformed(java.awt.event.ActionEvent evt){ } /** *@param指定命令行参数 */ 公共静态void main(字符串参数[]){ invokeLater(new Runnable()){ 公开募捐{ 新建Gui().setVisible(true); } }); } //变量声明-不修改 私有javax.swing.ButtongGroup结果; 私有javax.swing.JButton jButton1; 私有javax.swing.JComboBox jcombox1; 私有javax.swing.JLabel jLabel1; 私有javax.swing.JPanel jPanel1; 私有javax.swing.JPanel jPanel2; 私有javax.swing.JRadioButton JRadioButton 1; 私有javax.swing.JRadioButton JRadioButton 2; 私有javax.swing.JRadioButton JRadioButton 3; 私有javax.swing.JRadioButton JRadioButton 4; 私有javax.swing.JRadioButton JRadioButton 5; //变量结束声明 }

.addComponent(jRadioButton3) .addComponent(jRadioButton4) .addComponent(jRadioButton5)) .addContainerGap()) .addGroup(jpanellayout.createSequentialGroup() .addGap(99,99,99) .addComponent(jButton1,javax.swing.GroupLayout.PREFERRED_SIZE,114,javax.swing.GroupLayout.PREFERRED_SIZE) .addContainerGap(110,简称最大值)) .addGroup(jpanellayout.createSequentialGroup() .addGap(69,69,69) .addComponent(jLabel1) .addGap(92,92,92)) .addGroup(jpanellayout.createSequentialGroup() .addGap(55,55,55) .addComponent(jPanel2,javax.swing.GroupLayout.PREFERRED\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.PREFERRED\u SIZE) .addContainerGap(80,简称最大值)) ); jPanel1Layout.setVerticalGroup( jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(javax.swing.GroupLayout.Alignment.TRAILING,jPanel1Layout.createSequentialGroup() .addContainerGap() .addComponent(jLabel1) .addGap(29,29,29) .addComponent(jPanel2,javax.swing.GroupLayout.PREFERRED\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.PREFERRED\u SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED,47,Short.MAX_值) .addComponent(jcombox1,javax.swing.GroupLayout.PREFERRED\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.PREFERRED\u SIZE) .addGap(26,26,26) .addComponent(jRadioButton1) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addComponent(jRadioButton2) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addComponent(jRadioButton3) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addComponent(jRadioButton4) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addComponent(jRadioButton5) .addGap(18,18,18) .addComponent(jButton1) .addGap(29,29,29)) ); javax.swing.GroupLayout=newjavax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(布局); layout.setHorizontalGroup( createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addContainerGap() .addComponent(jPanel1,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u值) .addContainerGap()) ); layout.setVerticalGroup( createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addContainerGap() .addComponent(jPanel1,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u值) .addContainerGap()) ); 包装(); }// 私有void jButton1ActionPerformed(java.awt.event.ActionEvent evt){ } /** *@param指定命令行参数 */ 公共静态void main(字符串参数[]){ invokeLater(new Runnable()){ 公开募捐{ 新建Gui().setVisible(true); } }); } //变量声明-不修改 私有javax.swing.ButtongGroup结果; 私有javax.swing.JButton jButton1; 私有javax.swing.JComboBox jcombox1; 私有javax.swing.JLabel jLabel1; 私有javax.swing.JPanel jPanel1; 私有javax.swing.JPanel jPanel2; 私有javax.swing.JRadioButton JRadioButton 1; 私有javax.swing.JRadioButton JRadioButton 2; 私有javax.swing.JRadioButton JRadioButton 3; 私有javax.swing.JRadioButton JRadioButton 4; 私有javax.swing.JRadioButton JRadioButton 5; //变量结束声明 },java,swing,radio-button,drop-down-menu,Java,Swing,Radio Button,Drop Down Menu,通过扫描代码,看起来您已经在容器中初始化并布置了组件 为了使接口具有交互性,您需要研究Java Swing接口的另一个重要部分,即事件侦听器 基本上,您所做的一切(单击、值更改、移动鼠标、按键等)都会生成一个事件。然后编写对这些事件作出反应的事件侦听器 检查此项。通过扫描代码,看起来您已经在容器中初始化并布置了组件 为了使接口具有交互性,您需要研究Java Swing接口的另一个重要部分,即事件侦听器 基本上,您所做的一切(单击、值更改、移动鼠标、按键等)都会生成一个事件。然后编写对这些事件作出

通过扫描代码,看起来您已经在容器中初始化并布置了组件

为了使接口具有交互性,您需要研究Java Swing接口的另一个重要部分,即事件侦听器

基本上,您所做的一切(单击、值更改、移动鼠标、按键等)都会生成一个事件。然后编写对这些事件作出反应的事件侦听器


检查此项。

通过扫描代码,看起来您已经在容器中初始化并布置了组件

为了使接口具有交互性,您需要研究Java Swing接口的另一个重要部分,即事件侦听器

基本上,您所做的一切(单击、值更改、移动鼠标、按键等)都会生成一个事件。然后编写对这些事件作出反应的事件侦听器


查看此项。

对于您当前面临的问题,简而言之,问题是如何在按下JButton时从JComboBox和JradioButton集合中获取所选项。您如何处理这些信息取决于您的程序逻辑,实际上这不是问题所在。要了解这一点,我建议您转到Swing教程了解详细信息。简单地说,JComboBox中的选择只需在组合框上调用getSelectedItem即可获得。对于JRadioButton集合来说,这有点棘手,但我一直喜欢从保存JRadioButton的ButtonGroup中获得选择。下面的示例中显示了此方法和组合框的方法:

import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;

public class GetInfoFromCombosRadios extends JPanel {
   private static final String[] STUFF_A = {"Monday", "Tuesday", "Wednesday", "Thursday", "Friday"};
   private static final String[] STUFF_B = {"Fe", "Fi", "Fo", "Fum"};
   private JComboBox comboStuffA = new JComboBox(STUFF_A);
   private ButtonGroup btnGroupStuffB = new ButtonGroup();

   public GetInfoFromCombosRadios() {
      JPanel radioPanel = new JPanel(new GridLayout(0, 1, 0, 5));
      for (String stuffB : STUFF_B) {
         JRadioButton radioBtn = new JRadioButton(stuffB);
         radioBtn.setActionCommand(stuffB);
         btnGroupStuffB.add(radioBtn);
         radioPanel.add(radioBtn);
      }

      JPanel comboPanel = new JPanel();
      comboPanel.add(comboStuffA);

      JButton doItBtn = new JButton("Do It!");
      doItBtn.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent arg0) {
            doItActionPerformed();
         }
      });
      JPanel doItBtnPanel = new JPanel();
      doItBtnPanel.add(doItBtn);

      setLayout(new BoxLayout(this, BoxLayout.PAGE_AXIS));
      add(comboPanel);
      add(radioPanel);
      add(doItBtnPanel);
   }

   private void doItActionPerformed() {
      String comboSelection = comboStuffA.getSelectedItem().toString();
      System.out.println("Combo Selection: " + comboSelection);

      String radioSelection = "";
      ButtonModel selectedBtnModel = btnGroupStuffB.getSelection();
      if (selectedBtnModel == null) {
         radioSelection = "No radio button selected yet";
      } else {
         radioSelection = selectedBtnModel.getActionCommand();
      }
      System.out.println("Radio selection: " + radioSelection);
   }

   private static void createAndShowUI() {
      JFrame frame = new JFrame("GetInfoFromCombosRadios");
      frame.getContentPane().add(new GetInfoFromCombosRadios());
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.pack();
      frame.setLocationRelativeTo(null);
      frame.setVisible(true);
   }

   public static void main(String[] args) {
      java.awt.EventQueue.invokeLater(new Runnable() {
         public void run() {
            createAndShowUI();
         }
      });
   }
}

对于您当前面临的问题,请参阅
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;

public class GetInfoFromCombosRadios extends JPanel {
   private static final String[] STUFF_A = {"Monday", "Tuesday", "Wednesday", "Thursday", "Friday"};
   private static final String[] STUFF_B = {"Fe", "Fi", "Fo", "Fum"};
   private JComboBox comboStuffA = new JComboBox(STUFF_A);
   private ButtonGroup btnGroupStuffB = new ButtonGroup();

   public GetInfoFromCombosRadios() {
      JPanel radioPanel = new JPanel(new GridLayout(0, 1, 0, 5));
      for (String stuffB : STUFF_B) {
         JRadioButton radioBtn = new JRadioButton(stuffB);
         radioBtn.setActionCommand(stuffB);
         btnGroupStuffB.add(radioBtn);
         radioPanel.add(radioBtn);
      }

      JPanel comboPanel = new JPanel();
      comboPanel.add(comboStuffA);

      JButton doItBtn = new JButton("Do It!");
      doItBtn.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent arg0) {
            doItActionPerformed();
         }
      });
      JPanel doItBtnPanel = new JPanel();
      doItBtnPanel.add(doItBtn);

      setLayout(new BoxLayout(this, BoxLayout.PAGE_AXIS));
      add(comboPanel);
      add(radioPanel);
      add(doItBtnPanel);
   }

   private void doItActionPerformed() {
      String comboSelection = comboStuffA.getSelectedItem().toString();
      System.out.println("Combo Selection: " + comboSelection);

      String radioSelection = "";
      ButtonModel selectedBtnModel = btnGroupStuffB.getSelection();
      if (selectedBtnModel == null) {
         radioSelection = "No radio button selected yet";
      } else {
         radioSelection = selectedBtnModel.getActionCommand();
      }
      System.out.println("Radio selection: " + radioSelection);
   }

   private static void createAndShowUI() {
      JFrame frame = new JFrame("GetInfoFromCombosRadios");
      frame.getContentPane().add(new GetInfoFromCombosRadios());
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.pack();
      frame.setLocationRelativeTo(null);
      frame.setVisible(true);
   }

   public static void main(String[] args) {
      java.awt.EventQueue.invokeLater(new Runnable() {
         public void run() {
            createAndShowUI();
         }
      });
   }
}