java 隐藏按钮_java swing隐藏按钮的方法

1.

JButton hide1 = new JButton();

hide1.setOpaque(false);//

只是这样的话，还是无法将按钮隐藏起来，找了好久终于解决了这个问题

加上最后一行代码即可

JButton hide1 = new JButton();

hide1.setOpaque(false);//

hide1.setContentAreaFilled(false); //隐藏按钮的方法

2.

JComboBox的使用！

private JComboBox getJComboBox() {

if (jComboBox == null) {

jComboBox = new JComboBox();

jComboBox.setBounds(new Rectangle(int,int,int,int));

//添加几个初始值

jComboBox.addItem("");

jComboBox.addItem("Oracle");

jComboBox.addItem("SQL Server");

jComboBox.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent e) {

if(jComboBox.getSelectedItem().toString().trim().contains("Oracle"))

{

System.out.println("Oracle");

}else if(jComboBox.getSelectedItem().toString().trim().contains("SQL Server"))

{

System.out.println("SQL Server");

}

}

});

}

return jComboBox;

}