java程序打开文件和文件夹

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();
}