java执行系统cmd命令详解编程语言

class ExecCmd { 
    public static void main(String args[]) { 
        Runtime run = Runtime.getRuntime(); 
        Process process = null; 
        try { 
            process = run.exec("notepad"); // 执行cmd命令 
            process.waitFor(); 
        } catch (Exception e) { 
            System.out.println("Error executing notepad."); 
        } 
        System.out.println("Notepad returned " + process.exitValue()); 
    } 
}