JAVA 调用EXE

public class transferExe {
public static void main(String[] args) {
openWinExe();
openExe();
}
//用 Java 调用windows系统的exe文件，比如notepad，calc之类
public static void openWinExe() {
Runtime rn = Runtime.getRuntime();
Process p = null;
try {
String command = "notepad";
p = rn.exec(command);
} catch (Exception e) {
System.out.println("Error win exec!");
}
}
//调用其他的可执行文件，例如：自己制作的exe，或是 下载 安装的软件.
public static void openExe() {
Runtime rn = Runtime.getRuntime();
Process p = null;
try {
p = rn.exec("\"D:/QQ2010.exe\"");
} catch (Exception e) {
System.out.println("Error exec!");
}
}
}