我得到这个运行时错误,我想使java文件选择器看起来像Windows之一。NullPointerException当使用WindowsFileChooserUI
错误代码:
Exception in thread "main" java.lang.NullPointerException
at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.installComponents(WindowsFileChooserUI.java:306)
at javax.swing.plaf.basic.BasicFileChooserUI.installUI(BasicFileChooserUI.java:173)
at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.installUI(WindowsFileChooserUI.java:150)
at Main.getImg(Main.java:49)
at Main.main(Main.java:19)
代码:
JFileChooser fico = new JFileChooser();
WindowsFileChooserUI wui = new WindowsFileChooserUI(fico);
wui.installUI(fico);
int returnVal = fico.showOpenDialog(null);
我刚刚在你的问题中执行了4行代码,并没有例外。你能指定你的问题还是发送更多的代码? – Juvanis 2012-03-07 03:56:04