Invoke External Applications 

This tutorial shows how to list all system properties in one shot and execute external programs through java. We can use Runtime to execute any windows or Linux binary file. If your executable is in system PATH you can directly specify the executable name otherwise you need to specify the executable with full path. Still in doubt check the PATH environment variable. As notepad.exe is available in folder C:\WINDOWS\system32 which is already appended to system PATH we don't need to specify the full path.

File Name  :   com/bethecoder/tutorials/runtime/RuntimeTest.java  Author  :   Sudhakar KV Email  :   [email protected]

package com.bethecoder.tutorials.runtime; import java.io.IOException; public class RuntimeTest {   /**    * @param args    */   public static void main(String[] args) {     //List system properties     System.getProperties().list(System.out);          //Executable in system PATH     try {       Runtime.getRuntime().exec("notepad.exe C:\\Realtek.log");     } catch (IOException e) {           e.printStackTrace();     }          //Executable not in system PATH     try {       Runtime.getRuntime().exec("F:\\SampleWindow.exe");     } catch (IOException e) {           e.printStackTrace();     }   } }

java.runtime.name=Java(TM) SE Runtime Environment
sun.boot.library.path=C:\Program Files\Java\jre1.6.0_02\bin
java.vm.version=1.6.0_02-b05
java.vm.vendor=Sun Microsystems Inc.
java.vendor.url=http://java.sun.com/
path.separator=;
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