
java runtime.exec是什么?让我们一起来了解一下吧!
首先,java runtime.exec是java程序里一个很方便的方法,java可以通过运用Runtime.exec()在特定环境和工作目录的特定进程里执行外部程序或命令。

java runtime.exec有下面几种调用方法:
* public Process exec(String command); * public Process exec(String [] cmdArray); * public Process exec(String command, String [] envp); * public Process exec(String [] cmdArray, String [] envp);
实战演练,具体步骤如下:
* Java Runtime exec()方法
*/
import java.io.File;
public class RuntimeDemo {undefined
public static void main(String[] args) {undefined
try {undefined
// print a message
System.out.println("Executing notepad.exe...");
// create a file with the working directory we wish
File dir = new File("C:/");
// create a process and execute notepad.exe and currect environment
Process process = Runtime.getRuntime().exec("notepad.exe",
null, dir);
// print another message
System.out.println("Notepad should now open.");
} catch (Exception ex) {undefined
ex.printStackTrace();
}
}
}以上就是小编今天的分享了,希望可以帮助到大家。
