Thread: Run cmd commands through java

I started this week with Java so I’m a beginner, not sure if my question is as well, so I post it here. I would like my application to execute a command in cmd. The command looks like

start "" /D "C:\Riot Games\League of Legends\RADS\solutions\lol_game_client_sln\release s\0.0.1.55\deploy" "League of Legends.exe" "8394" "LoLLauncher.exe" "" "spectator 95.172.65.26:8088 P3hNrXYZlaM3iJ9ximtzJWHbwLhvbimJ 953089676 EUN1"

So my question is how do I do this?

I tried this, (just copy paste the command):

package MyProject;
 
import java.io.IOException;
import java.io.InputStream;
 
public class Cmd {
 
	public static void main(String[] args) {
		try {
			final Process process = Runtime.getRuntime().exec("start \"\" /D \"C:\\Riot Games\\League of Legends\\RADS\\solutions\\lol_game_client_sln\\releases\\0.0.1.55\\deploy\" \"League of Legends.exe\" \"8394\" \"LoLLauncher.exe\" \"\" \"spectator 95.172.65.26:8088 P3hNrXYZlaM3iJ9ximtzJWHbwLhvbimJ 953089676 EUN1\"");
		    final InputStream in = process.getInputStream();
		    int ch;
		    while((ch = in.read()) != -1) {
		    	System.out.print((char)ch);
		    }
		 } catch (IOException e) {
			 e.printStackTrace();
		 }
	}
}

but than I get the error:

java.io.IOException: Cannot run program "start": CreateProcess error=2, Het systeem kan het opgegeven bestand niet vinden
	at java.lang.ProcessBuilder.start(Unknown Source)
	at java.lang.Runtime.exec(Unknown Source)
	at java.lang.Runtime.exec(Unknown Source)
	at java.lang.Runtime.exec(Unknown Source)
	at MyProject.Cmd.main(Cmd.java:12)
Caused by: java.io.IOException: CreateProcess error=2, Het systeem kan het opgegeven bestand niet vinden
	at java.lang.ProcessImpl.create(Native Method)
	at java.lang.ProcessImpl.<init>(Unknown Source)
	at java.lang.ProcessImpl.start(Unknown Source)
	... 5 more

It is working, you pointed me in the right direcition. It was the start command. for googlers who land on this page. I used the following, not sure why this is working but it does.

package MyProject;
 
import java.io.IOException;
import java.io.InputStream;
 
public class Cmd {
 
   public static void main(String[] args) {
      try {
         final Process process = Runtime.getRuntime().exec(new String[]{"cmd.exe","/c","start notepad"});
         final InputStream in = process.getInputStream();
         int ch;
         while((ch = in.read()) != -1) {
            System.out.print((char)ch);
         }
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
 
}