Java 带有列表和添加项的简单GUI
我想在java的swing库中创建一个简单的GUI,其中包含一个项目列表(特定类的项目)。我还希望在列表之外有一个框,带有一个文本字段和一个按钮,用于向列表中添加一个新项目(然后该项目将文本字段中的内容作为其标题)。我环顾四周,但没有找到一个像样的教程。任何指向正确教程或简短示例的链接都将不胜感激。请尝试此示例,但当然要根据您的需要设置格式。您还需要向按钮添加操作侦听器。如果你不知道怎么做,我可以告诉你 您可以使用并修改下面的代码示例,也可以使用本教程教授您需要了解的有关Swing的所有知识: 此示例是使用NetBeans Gui Builder生成的Java 带有列表和添加项的简单GUI,java,swing,Java,Swing,我想在java的swing库中创建一个简单的GUI,其中包含一个项目列表(特定类的项目)。我还希望在列表之外有一个框,带有一个文本字段和一个按钮,用于向列表中添加一个新项目(然后该项目将文本字段中的内容作为其标题)。我环顾四周,但没有找到一个像样的教程。任何指向正确教程或简短示例的链接都将不胜感激。请尝试此示例,但当然要根据您的需要设置格式。您还需要向按钮添加操作侦听器。如果你不知道怎么做,我可以告诉你 您可以使用并修改下面的代码示例,也可以使用本教程教授您需要了解的有关Swing的所有知识:
public class NewJFrame15 extends javax.swing.JFrame {
/**
* Creates new form NewJFrame15
*/
public NewJFrame15() {
initComponents();
}
private void initComponents() {
jScrollPane1 = new javax.swing.JScrollPane();
jList1 = new javax.swing.JList();
jPanel1 = new javax.swing.JPanel();
jTextField1 = new javax.swing.JTextField();
jButton1 = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jList1.setModel(new javax.swing.AbstractListModel() {
String[] strings = { "Item 1", "Item 2", "Item 3", "Item 4", "Item 5" };
public int getSize() { return strings.length; }
public Object getElementAt(int i) { return strings[i]; }
});
jScrollPane1.setViewportView(jList1);
jPanel1.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.LOWERED));
jButton1.setText("Add");
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 111, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton1, javax.swing.GroupLayout.DEFAULT_SIZE, 114, Short.MAX_VALUE)
.addContainerGap())
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton1))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 133, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(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()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 335, Short.MAX_VALUE))
.addContainerGap())
);
pack();
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(NewJFrame15.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(NewJFrame15.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(NewJFrame15.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(NewJFrame15.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new NewJFrame15().setVisible(true);
Math.random();
}
});
}
private javax.swing.JButton jButton1;
private javax.swing.JList jList1;
private javax.swing.JPanel jPanel1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextField jTextField1;
}
公共类NewJFrame15扩展了javax.swing.JFrame{
/**
*创建新表单NewJFrame15
*/
公共新框架15(){
初始化组件();
}
私有组件(){
jScrollPane1=newjavax.swing.JScrollPane();
jList1=newjavax.swing.JList();
jPanel1=newjavax.swing.JPanel();
jTextField1=newjavax.swing.JTextField();
jButton1=newjavax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setModel(新的javax.swing.AbstractListModel(){
字符串[]字符串={“项目1”、“项目2”、“项目3”、“项目4”、“项目5”};
public int getSize(){return strings.length;}
公共对象getElementAt(inti){返回字符串[i];}
});
jScrollPane1.setViewportView(jList1);
setBorder(新的javax.swing.border.SoftBevelOrder(javax.swing.border.BevelOrder.LOWERED));
jButton1.setText(“添加”);
javax.swing.GroupLayout jPanel1Layout=新的javax.swing.GroupLayout(jPanel1);
setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jpanellayout.createSequentialGroup()
.addContainerGap()
.addComponent(jTextField1,javax.swing.GroupLayout.PREFERRED_SIZE,111,javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton1,javax.swing.GroupLayout.DEFAULT_SIZE,114,Short.MAX_值)
.addContainerGap())
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jpanellayout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jTextField1,javax.swing.GroupLayout.PREFERRED\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.PREFERRED\u SIZE)
.addComponent(jButton1))
.addContainerGap(javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u VALUE))
);
javax.swing.GroupLayout=newjavax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(布局);
layout.setHorizontalGroup(
createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane1,javax.swing.GroupLayout.PREFERRED\u SIZE,133,javax.swing.GroupLayout.PREFERRED\u SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel1,javax.swing.GroupLayout.PREFERRED\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.PREFERRED\u SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u VALUE))
);
layout.setVerticalGroup(
createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING,layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.training)
.addComponent(jPanel1,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u值)
.addComponent(jScrollPane1,javax.swing.GroupLayout.DEFAULT_SIZE,335,Short.MAX_VALUE))
.addContainerGap())
);
包装();
}
/**
*@param指定命令行参数
*/
公共静态void main(字符串参数[]){
试一试{
for(javax.swing.UIManager.LookAndFeelInfo:javax.swing.UIManager.getInstalledLookAndFeels()){
if(“Nimbus”.equals(info.getName())){
setLookAndFeel(info.getClassName());
打破
}
}
}捕获(ClassNotFoundException ex){
getLogger(NewJFrame15.class.getName()).log(java.util.logging.Level.SEVERE,null,ex);
}catch(实例化异常){
getLogger(NewJFrame15.class.getName()).log(java.util.logging.Level.SEVERE,null,ex);
}捕获(非法访问例外){
getLogger(NewJFrame15.class.getName()).log(java.util.logging.Level.SEVERE,null,ex);
}catch(javax.swing.UnsupportedLookAndFeelException ex){
getLogger(NewJFrame15.class.getName()).log(java.util.logging.Level.SEVERE,null,ex);
}
//
/*创建并显示表单*/
invokeLater(new Runnable()){
公开募捐{
新的NewJFrame15().setVisible(true);
数学随机();
}
});
}
私有javax.swing.JButton jButton1;
私有javax.swing.JList jList1;
私有javax.swing.JPanel jPanel1;
私有javax.swing.JScrollPane-jScrollPane1;
私有javax.swing.JTextField jTextField1;
}
您可以使用JCheckbox选择特定项目或JCom