java打开命令 java 打开文件

打开文件 //打开工具的路径及名字

String toolsPath = "C:/WINDOWS/system32/notepad.exe "; 
   //被打开文件的路径及名字 
   String fileName = "e:/text.txt"; 
   try { 

    Runtime.getRuntime().exec(toolsPath+fileName); 
   } catch (IOException e) { 
       // TODO Auto-generated catch block 
       e.printStackTrace(); 
   }

打开文件夹

try {
      String[] cmd = new String[5];
      String url = "D://Program Files";
      cmd[0] = "cmd";
      cmd[1] = "/c";
      cmd[2] = "start";
      cmd[3] = " ";
      cmd[4] = url;
      Runtime.getRuntime().exec(cmd);
      } catch (IOException e) {
      e.printStackTrace();
      }