英文:
Any suggestions how to fix and get WeightPlot and WeightEditor tabs?
问题
以下是您要求的翻译部分：
无法找到解决代码中错误的方法。任何建议都会有帮助。
package weightmonitor;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.Rectangle2D;
public class WeightMonitor extends JFrame {
// 菜单
JMenuBar mainMenuBar = new JMenuBar();
JMenu fileMenu = new JMenu("File");
JMenuItem newMenuItem = new JMenuItem("New Weight File");
JMenuItem openMenuItem = new JMenuItem("Open Weight File");
JMenuItem saveMenuItem = new JMenuItem("Save Weight File");
JMenuItem exitMenuItem = new JMenuItem("Exit");
//
public static void main(String args[]) {
// 创建框架
new WeightMonitor().setVisible(true);
}
public WeightMonitor() {
// 框架构造函数
setTitle("Weight Monitor");
setResizable(true);
setJMenuBar(mainMenuBar);
mainMenuBar.add(fileMenu);
fileMenu.add(newMenuItem);
fileMenu.add(openMenuItem);
fileMenu.add(saveMenuItem);
fileMenu.addSeparator();
fileMenu.add(exitMenuItem);
newMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newMenuItemActionPerformed(e);
}
});
openMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
openMenuItemActionPerformed(e);
}
});
saveMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
saveMenuItemActionPerformed(e);
}
});
exitMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
exitMenuItemActionPerformed(e);
}
});
addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent evt) {
exitForm(evt);
}
});
getContentPane().setLayout(new GridBagLayout());
GridBagConstraints gridConstraints;
pack();
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
setBounds((int)(0.5 * (screenSize.width - getWidth())),
(int)(0.5 * (screenSize.height - getHeight())),
getWidth(), getHeight());
}
private void newMenuItemActionPerformed(ActionEvent e) {}
private void openMenuItemActionPerformed(ActionEvent e) {}
private void saveMenuItemActionPerformed(ActionEvent e) {}
private void exitMenuItemActionPerformed(ActionEvent e) {}
private void exitForm(WindowEvent evt) {
System.exit(0);
}
}
class WeightPlotPanel extends JPanel {
// 标签控制和面板的声明
JTabbedPane weightTabbedPane = new JTabbedPane();
JPanel editorPanel = new JPanel();
WeightPlotPanel plotPanel = new WeightPlotPanel();
public void paintComponent(Graphics g) {
Rectangle2D.Double plotFrame;
Graphics2D g2D = (Graphics2D) g;
super.paintComponent(g2D);
// 绘制图框
plotFrame = new Rectangle2D.Double(50, 40, 420, 280);
g2D.setPaint(Color.WHITE);
g2D.fill(plotFrame);
g2D.setStroke(new BasicStroke(2));
g2D.setPaint(Color.BLACK);
g2D.draw(plotFrame);
g2D.dispose();
//pack();
weightTabbedPane.setPreferredSize(new Dimension(500, 400));
weightTabbedPane.addTab("Weight Editor", editorPanel);
weightTabbedPane.addTab("Weight Plot", plotPanel);
GridBagConstraints gridConstraints = new GridBagConstraints();
gridConstraints.gridx = 0;
gridConstraints.gridy = 0;
getContentPane().add(weightTabbedPane, gridConstraints);
editorPanel.setBackground(new Color(192, 192, 255));
editorPanel.setLayout(new GridBagLayout());
plotPanel.setBackground(new Color(255, 192, 192));
}
}
IntelliJ IDEA 提示
在 "getContentPane().add(weightTabbedPane, gridConstraints);" 上存在错误。
但我不知道如何修复它。IntelliJ IDEA 提供了创建私有方法的选项，但是否有其他方法来解决这个问题呢？任何建议都会有帮助。
英文:
I can't find the solution on how to fix Errors in the code. Any advice would be helpful.
package weightmonitor;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.Rectangle2D;
public class WeightMonitor extends JFrame {
//menu
JMenuBar mainMenuBar = new JMenuBar();
JMenu fileMenu = new JMenu("File");
JMenuItem newMenuItem = new JMenuItem("New Weight File");
JMenuItem openMenuItem = new JMenuItem("Open Weight File");
JMenuItem saveMenuItem = new JMenuItem("Save Weight File");
JMenuItem exitMenuItem = new JMenuItem("Exit");
//
public static void main(String args[]) {
//create frame
new WeightMonitor().setVisible(true);
}
public WeightMonitor() {
//frame constructor
setTitle("Weight Monitor");
setResizable(true);
setJMenuBar(mainMenuBar);
mainMenuBar.add(fileMenu);
fileMenu.add(newMenuItem);
fileMenu.add(openMenuItem);
fileMenu.add(saveMenuItem);
fileMenu.addSeparator();
fileMenu.add(exitMenuItem);
newMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newMenuItemActionPerformed(e);
}
});
openMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
openMenuItemActionPerformed(e);
}
});
saveMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
saveMenuItemActionPerformed(e);
}
});
exitMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
exitMenuItemActionPerformed(e);
}
});
addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent evt) {
exitForm(evt);
}
});
getContentPane().setLayout(new GridBagLayout());
GridBagConstraints gridConstraints;
pack();
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
setBounds((int)(0.5 * (screenSize.width - getWidth())),
(int)(0.5 * (screenSize.height - getHeight())),
getWidth(), getHeight());
}
private void newMenuItemActionPerformed(ActionEvent e) {}
private void openMenuItemActionPerformed(ActionEvent e) {}
private void saveMenuItemActionPerformed(ActionEvent e) {}
private void exitMenuItemActionPerformed(ActionEvent e) {}
private void exitForm(WindowEvent evt) {
System.exit(0);
}
}
class WeightPlotPanel extends JPanel {
//Declaration of tab control and panels
JTabbedPane weightTabbedPane = new JTabbedPane();
JPanel editorPanel = new JPanel();
WeightPlotPanel plotPanel = new WeightPlotPanel();
public void paintComponent(Graphics g) {
Rectangle2D.Double plotFrame;
Graphics2D g2D = (Graphics2D) g;
super.paintComponent(g2D);
//draw plot frame
plotFrame = new Rectangle2D.Double(50, 40, 420, 280);
g2D.setPaint(Color.WHITE);
g2D.fill(plotFrame);
g2D.setStroke(new BasicStroke(2));
g2D.setPaint(Color.BLACK);
g2D.draw(plotFrame);
g2D.dispose();
//pack();
weightTabbedPane.setPreferredSize(new Dimension(500, 400));
weightTabbedPane.addTab("Weight Editor", editorPanel);
weightTabbedPane.addTab("Weight Plot", plotPanel);
GridBagConstraints gridConstraints = new GridBagConstraints();
gridConstraints.gridx = 0;
gridConstraints.gridy = 0;
getContentPane().add(weightTabbedPane, gridConstraints);
editorPanel.setBackground(new Color(192, 192, 255));
editorPanel.setLayout(new GridBagLayout());
plotPanel.setBackground(new Color(255, 192, 192));
}
}
IntelijIdea says
> Error on "getContentPane().add(weightTabbedPane, gridConstraints);"
but I don't know how to fix it. The IntelijIdea gives the option to create a private method but is there any other way to fix this. Any advice would be helpful.
答案1
得分: 1
当您扩展JFrame或JPanel时，不需要获取getContentPane()！您已经在一个容器中。只需调用add将组件添加到容器中。
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.Rectangle2D;
public class WeightMonitor extends JFrame {
// 菜单
JMenuBar mainMenuBar = new JMenuBar();
JMenu fileMenu = new JMenu("File");
JMenuItem newMenuItem = new JMenuItem("New Weight File");
JMenuItem openMenuItem = new JMenuItem("Open Weight File");
JMenuItem saveMenuItem = new JMenuItem("Save Weight File");
JMenuItem exitMenuItem = new JMenuItem("Exit");
// 其他部分...
public WeightMonitor() {
// 构造函数
setTitle("Weight Monitor");
setResizable(true);
setJMenuBar(mainMenuBar);
mainMenuBar.add(fileMenu);
fileMenu.add(newMenuItem);
fileMenu.add(openMenuItem);
fileMenu.add(saveMenuItem);
fileMenu.addSeparator();
fileMenu.add(exitMenuItem);
// 其他部分...
getContentPane().setLayout(new GridBagLayout());
GridBagConstraints gridConstraints;
pack();
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
setBounds((int) (0.5 * (screenSize.width - getWidth())),
(int) (0.5 * (screenSize.height - getHeight())),
getWidth(), getHeight());
}
// 其他部分...
}
class WeightPlotPanel extends JPanel {
// 其他部分...
public void paintComponent(Graphics g) {
Rectangle2D.Double plotFrame;
Graphics2D g2D = (Graphics2D) g;
super.paintComponent(g2D);
// 绘制绘图框架
plotFrame = new Rectangle2D.Double(50, 40, 420, 280);
g2D.setPaint(Color.WHITE);
g2D.fill(plotFrame);
g2D.setStroke(new BasicStroke(2));
g2D.setPaint(Color.BLACK);
g2D.draw(plotFrame);
g2D.dispose();
weightTabbedPane.setPreferredSize(new Dimension(500, 400));
weightTabbedPane.addTab("Weight Editor", editorPanel);
weightTabbedPane.addTab("Weight Plot", plotPanel);
GridBagConstraints gridConstraints = new GridBagConstraints();
gridConstraints.gridx = 0;
gridConstraints.gridy = 0;
add(weightTabbedPane, gridConstraints);
editorPanel.setBackground(new Color(192, 192, 255));
editorPanel.setLayout(new GridBagLayout());
plotPanel.setBackground(new Color(255, 192, 192));
}
}
英文:
No need to get getContentPane() When you extend JFrame or JPanel! You are already in a container. Just call add to add a component to the container.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.Rectangle2D;
public class WeightMonitor extends JFrame {
//menu
JMenuBar mainMenuBar = new JMenuBar();
JMenu fileMenu = new JMenu("File");
JMenuItem newMenuItem = new JMenuItem("New Weight File");
JMenuItem openMenuItem = new JMenuItem("Open Weight File");
JMenuItem saveMenuItem = new JMenuItem("Save Weight File");
JMenuItem exitMenuItem = new JMenuItem("Exit");
//
public static void main(String args[]){
//create frame
new WeightMonitor().setVisible(true);
}
public WeightMonitor(){
//frame constructor
setTitle("Weight Monitor");
setResizable(true);
setJMenuBar(mainMenuBar);
mainMenuBar.add(fileMenu);
fileMenu.add(newMenuItem);
fileMenu.add(openMenuItem);
fileMenu.add(saveMenuItem);
fileMenu.addSeparator();
fileMenu.add(exitMenuItem);
newMenuItem.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e) {
newMenuItemActionPerformed(e); }
});
openMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
openMenuItemActionPerformed(e); } });
saveMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
saveMenuItemActionPerformed(e); } });
exitMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
exitMenuItemActionPerformed(e); } });
addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent evt) {
exitForm(evt);
}
});
getContentPane().setLayout(new GridBagLayout());
GridBagConstraints gridConstraints;
pack();
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
setBounds((int) (0.5 * (screenSize.width - getWidth())),
(int) (0.5 * (screenSize.height - getHeight())),
getWidth(), getHeight());
}
private void newMenuItemActionPerformed(ActionEvent e) { }
private void openMenuItemActionPerformed(ActionEvent e) { }
private void saveMenuItemActionPerformed(ActionEvent e) { }
private void exitMenuItemActionPerformed(ActionEvent e) { }
private void exitForm(WindowEvent evt){
System.exit(0);
}
}
class WeightPlotPanel extends JPanel
{
//Declaration of tab control and panels
JTabbedPane weightTabbedPane = new JTabbedPane();
JPanel editorPanel = new JPanel();
WeightPlotPanel plotPanel = new WeightPlotPanel();
public void paintComponent(Graphics g)
{
Rectangle2D.Double plotFrame;
Graphics2D g2D = (Graphics2D) g;
super.paintComponent(g2D);
//draw plot frame
plotFrame = new Rectangle2D.Double(50, 40, 420, 280);
g2D.setPaint(Color.WHITE);
g2D.fill(plotFrame);
g2D.setStroke(new BasicStroke(2));
g2D.setPaint(Color.BLACK);
g2D.draw(plotFrame);
g2D.dispose();
//pack();
weightTabbedPane.setPreferredSize(new Dimension(500, 400));
weightTabbedPane.addTab("Weight Editor", editorPanel);
weightTabbedPane.addTab("Weight Plot", plotPanel);
GridBagConstraints gridConstraints = new GridBagConstraints();
gridConstraints.gridx = 0;
gridConstraints.gridy = 0;
add(weightTabbedPane, gridConstraints);
editorPanel.setBackground(new Color(192, 192, 255));
editorPanel.setLayout(new GridBagLayout());
plotPanel.setBackground(new Color(255, 192, 192));
}
}
答案2
得分: 0
JPanel继承自类java.awt.Container，因此JPanel类本身就是一个容器。
方法getContentPane()没有实现。
将以下行进行替换：
getContentPane().add(weightTabbedPane, gridConstraints);
改为
add(weightTabbedPane, gridConstraints);
英文:
JPanel inherit the class java.awt.Container, so the class JPanel is a container itself.
There is no implementation of the method getContentPane().
Replace the line
getContentPane().add(weightTabbedPane, gridConstraints);
by
add(weightTabbedPane, gridConstraints);
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