我在java开始一个新项目，我正在开发一个视图控制系统＆＃34;到目前为止，我一直做得很好，但是作为我第一次开发一个长期项目，如果我不是100％确定这将是好的，我不想使用它。 我希望大家看看代码并提出任何建议。
package Main;
import Panels.BluePanel;
import Panels.RedPanel;
import javax.swing.JPanel;
public class MainDialog extends javax.swing.JFrame {
private BluePanel jpnBodyBlue;
private RedPanel jpnBodyRed;
private BodyPanels currentBodyPanel;
/**
* Creates new form Principal
*/
public MainDialog() {
initComponents();
initPanels();
}
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jpnContenedor = new javax.swing.JPanel();
jpnIzquierdo = new javax.swing.JPanel();
jpnBody = new javax.swing.JPanel();
jToolBar1 = new javax.swing.JToolBar();
btnMenuPanel1 = new javax.swing.JButton();
btnMenuPanel2 = new javax.swing.JButton();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
jMenu2 = new javax.swing.JMenu();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setBackground(java.awt.Color.white);
jpnContenedor.setBackground(new java.awt.Color(255, 255, 255));
jpnIzquierdo.setBackground(new java.awt.Color(240, 240, 240));
javax.swing.GroupLayout jpnIzquierdoLayout = new javax.swing.GroupLayout(jpnIzquierdo);
jpnIzquierdo.setLayout(jpnIzquierdoLayout);
jpnIzquierdoLayout.setHorizontalGroup(
jpnIzquierdoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 100, Short.MAX_VALUE)
);
jpnIzquierdoLayout.setVerticalGroup(
jpnIzquierdoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 321, Short.MAX_VALUE)
);
jpnBody.setBackground(new java.awt.Color(65, 65, 65));
jpnBody.addComponentListener(new java.awt.event.ComponentAdapter() {
public void componentResized(java.awt.event.ComponentEvent evt) {
jpnBodyComponentResized(evt);
}
});
jpnBody.setLayout(null);
javax.swing.GroupLayout jpnContenedorLayout = new javax.swing.GroupLayout(jpnContenedor);
jpnContenedor.setLayout(jpnContenedorLayout);
jpnContenedorLayout.setHorizontalGroup(
jpnContenedorLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jpnContenedorLayout.createSequentialGroup()
.addComponent(jpnIzquierdo, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jpnBody, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
jpnContenedorLayout.setVerticalGroup(
jpnContenedorLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jpnIzquierdo, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jpnBody, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
jToolBar1.setFloatable(false);
btnMenuPanel1.setText("Pan 1");
btnMenuPanel1.setFocusable(false);
btnMenuPanel1.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
btnMenuPanel1.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);
btnMenuPanel1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnMenuPanel1ActionPerformed(evt);
}
});
jToolBar1.add(btnMenuPanel1);
btnMenuPanel2.setText("Pan 2");
btnMenuPanel2.setFocusable(false);
btnMenuPanel2.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
btnMenuPanel2.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);
btnMenuPanel2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnMenuPanel2ActionPerformed(evt);
}
});
jToolBar1.add(btnMenuPanel2);
jMenu1.setText("File");
jMenuBar1.add(jMenu1);
jMenu2.setText("Edit");
jMenuBar1.add(jMenu2);
setJMenuBar(jMenuBar1);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jToolBar1, javax.swing.GroupLayout.DEFAULT_SIZE, 800, Short.MAX_VALUE)
.addComponent(jpnContenedor, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addComponent(jToolBar1, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jpnContenedor, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void btnMenuPanel1ActionPerformed(java.awt.event.ActionEvent evt) {
controlPanels(BodyPanels.Blue);
}
private void btnMenuPanel2ActionPerformed(java.awt.event.ActionEvent evt) {
controlPanels(BodyPanels.Red);
}
/**
* Resizes the currentBodyPanel everytime the bodyPanel container is
* resized.
*
* @param evt
*/
private void jpnBodyComponentResized(java.awt.event.ComponentEvent evt) {
//Checks if there is any currentBodyPanel (as it starts as null).
if (currentBodyPanel == null) {
return;
}
JPanel newPanel = null;
switch (currentBodyPanel) {
case Blue:
newPanel = jpnBodyBlue;
break;
case Red:
newPanel = jpnBodyRed;
break;
}
newPanel.setBounds(0, 0, jpnBody.getWidth(), jpnBody.getHeight()); // TODO add your handling code here:
}
// Variables declaration - do not modify
private javax.swing.JButton btnMenuPanel1;
private javax.swing.JButton btnMenuPanel2;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JToolBar jToolBar1;
private javax.swing.JPanel jpnBody;
private javax.swing.JPanel jpnContenedor;
private javax.swing.JPanel jpnIzquierdo;
// End of variables declaration
public void controlPanels(BodyPanels newPanel) {
setPanelVisible(newPanel);
}
/**
* Creates the possible body panels.
*/
private void initPanels() {
jpnBodyBlue = new BluePanel();
jpnBody.add(jpnBodyBlue);
jpnBodyBlue.setBounds(0, 0, jpnBody.getWidth(), jpnBody.getHeight());
jpnBodyBlue.setVisible(false);
jpnBodyRed = new RedPanel();
jpnBody.add(jpnBodyRed);
jpnBodyRed.setBounds(0, 0, jpnBody.getWidth(), jpnBody.getHeight());
jpnBodyRed.setVisible(false);
}
/**
* Hides the currentBodyPanel and shows the Panel passed to the method.
*
* @param panel
*/
public void setPanelVisible(BodyPanels panel) {
JPanel newPanel;
if (currentBodyPanel != null) {
switch (currentBodyPanel) {
case Blue:
jpnBodyBlue.setVisible(false);
break;
case Red:
jpnBodyRed.setVisible(false);
break;
default:
break;
}
}
switch (panel) {
case Blue:
newPanel = jpnBodyBlue;
break;
case Red:
newPanel = jpnBodyRed;
break;
default:
System.err.println("No action.");
newPanel = null;
break;
}
currentBodyPanel = panel;
newPanel.setVisible(true);
}
/**
* Enum for the possible body panels.
*/
public enum BodyPanels {
Red, Blue;
}
}
BluePanel和RedPanel都是JPanel的扩展版本。这也可以作为一个例子，因为我已经完成了单一课程的整个工作。
我还想知道是否有任何lib已经完成了我在这里尝试做的事情。