How to open specified exe file in java
知识补充:
Runtime
:运行时,是一个封装了JVM进程的类。每一个JAVA程序实际上都是启动了一个JVM进程,那么每一个进程都是对应这一个Runtime实例,其实例是由JVM为其初始化的。
Runtime类的常用方法
public static Runtime getRuntime():
普通方法 用于取得Runtime类的实例
public long freeMemory():
普通方法 用于返回Java虚拟机中的空闲内存
public long maxMemory():
返回JVM的最大内存量
public void gc():
运行垃圾回收器、释放空间
public Process exec(String command) throws IOException
执行本机命令
一旦取得实例后,以上的方法就可以进行操作了。
免费在线学习视频推荐:java在线视频
示例如下:
public static void main(final String[] args) throws IOException { openWindowsExe(); openExe(); openFile(); } // 用 Java 调用windows系统的exe文件,比如notepad,calc之类 public static void openWindowsExe() { final Runtime runtime = Runtime.getRuntime(); Process process = null; try { final String command = "notepad";// 记事本 process = runtime.exec(command); } catch (final 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() { final Runtime runtime = Runtime.getRuntime(); Process process = null; try { process = runtime.exec("C:\\Program Files\\Notepad++\\notepad++.exe"); } catch (final Exception e) { System.out.println("Error exec!"); } } // 打开其他任意格式的文件,比如txt,word等 public static void openFile() { final Runtime runtime = Runtime.getRuntime(); Process process = null;// final String cmd = "rundll32 url.dll FileProtocolHandler file://F:\\ECT项目资料\\建立EMF工程.txt"; try { process = runtime.exec(cmd); } catch (final Exception e) { System.out.println("Error exec!"); } }
想学习更多相关文章教程请访问:java入门
The above is the detailed content of How to open specified exe file in java. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Java 8 introduces the Stream API, providing a powerful and expressive way to process data collections. However, a common question when using Stream is: How to break or return from a forEach operation? Traditional loops allow for early interruption or return, but Stream's forEach method does not directly support this method. This article will explain the reasons and explore alternative methods for implementing premature termination in Stream processing systems. Further reading: Java Stream API improvements Understand Stream forEach The forEach method is a terminal operation that performs one operation on each element in the Stream. Its design intention is

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

Capsules are three-dimensional geometric figures, composed of a cylinder and a hemisphere at both ends. The volume of the capsule can be calculated by adding the volume of the cylinder and the volume of the hemisphere at both ends. This tutorial will discuss how to calculate the volume of a given capsule in Java using different methods. Capsule volume formula The formula for capsule volume is as follows: Capsule volume = Cylindrical volume Volume Two hemisphere volume in, r: The radius of the hemisphere. h: The height of the cylinder (excluding the hemisphere). Example 1 enter Radius = 5 units Height = 10 units Output Volume = 1570.8 cubic units explain Calculate volume using formula: Volume = π × r2 × h (4

PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.

Java is a popular programming language that can be learned by both beginners and experienced developers. This tutorial starts with basic concepts and progresses through advanced topics. After installing the Java Development Kit, you can practice programming by creating a simple "Hello, World!" program. After you understand the code, use the command prompt to compile and run the program, and "Hello, World!" will be output on the console. Learning Java starts your programming journey, and as your mastery deepens, you can create more complex applications.

The reasons why PHP is the preferred technology stack for many websites include its ease of use, strong community support, and widespread use. 1) Easy to learn and use, suitable for beginners. 2) Have a huge developer community and rich resources. 3) Widely used in WordPress, Drupal and other platforms. 4) Integrate tightly with web servers to simplify development deployment.
