Execute commands in cmd using Java

Question

I am using the following code to run the cmd.exe and the cmd window appears which is fine.

Runtime runtime = Runtime.getRuntime();
    try {
        Process p = runtime.exec("cmd.exe /c start");
    } catch (IOException ex) {
        Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
    }

image 1

My question is that how can I run the following command on the cmd before it appears using java

ghci test.hs

my target is to make the command line looks like the following image once it appears

imag2

Answer 1

run

Runtime runtime = Runtime.getRuntime();      
try { 
    Process p = runtime.exec("start cmd.exe /k \"ghci.exe test.hs\""); 

} catch (IOException ex) {
 Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); 
}

referens http://ss64.com/nt/cmd.html

more info at How to open the command prompt and insert commands using Java?