我想不过我上destinationField.addItem一个NullPointerException添加字符串组合框 - 空指针
private String[] dest = {"New York", "Dahab", "Rome", "Sydney", "Tokyo"};
的此列表此组合框像这样
for(int i = 0; i < dest.length; i++){
System.out.println(dest[i]);
destinationField.addItem(dest[i]);
}
(DEST [一世]);线
JComboBox<String> destinationField;
'destinationField' null? – resueman 2014-08-28 14:26:48
什么是destinationField? – 2014-08-28 14:28:31
JComboBox destinationField; –
user3456349
2014-08-28 14:29:22