JAVA：如何从首选项页面访问文件路径并在编程代码中使用它

在构造ProcessBuilder的try块中尝试以下操作：

 IPreferenceStore store = plugin.getPreferenceStore(); ProcessBuilder pb=new ProcessBuilder(store.getString(PreferenceConstants.P_PATH); pb.directory(new File(store.getString(PreferenceConstants.P_PATH1)); Process p=pb.start();