我是Kotlin的新手,正在将一些Java代码转换为它。
我想出的代码是:
val comboBox: JComboBox<*> = JComboBox<Any?>()
comboBox.font = Font("苹方", Font.PLAIN, 15)
comboBox.setModel(DefaultComboBoxModel<Any?>(s)) /*
error:Out-projected type 'JComboBox<*>' prohibits the use of '@BeanProperty public open fun setModel(p0: ComboBoxModel<E!>!): Unit defined in javax.swing.JComboBox'
*/
comboBox.setBounds(341, 73, 170, 28)
panel.add(comboBox)
但出现以下错误:
Error:Kotlin:Out-projected type 'JComboBox<*>' prohibits the use of '@BeanProperty public open fun setModel(p0: ComboBoxModel<E!>!)
我究竟做错了什么?
为了完整起见,这是我的原始Java代码:
JComboBox comboBox = new JComboBox();
comboBox.setFont(new Font("苹方", Font.PLAIN, 15));
comboBox.setModel(new DefaultComboBoxModel(s));
comboBox.setBounds(341, 73, 170, 28);
panel.add(comboBox);
最佳答案
之前的代码:
val comboBox: JComboBox<*> = JComboBox<Any?>()
应该更改为:
val comboBox = JComboBox<Any?>()