How to Execute Commands with Runtime.getRuntime().exec() in Java/Kotlin and Display a Visible Command Prompt

What is the method to run system commands in Java or Kotlin using Runtime.getRuntime().exec() and display the command prompt?

String command = "cmd /c start notepad.exe"; Runtime.getRuntime().exec(command);

The `Runtime.getRuntime().exec()` method in Java and Kotlin allows you to execute system commands, but by default, it runs without displaying a command prompt. To run commands with a visible command prompt, you can modify the command string to launch the command prompt itself and execute desired commands within it.

String command = "cmd /c start notepad.exe"; Runtime.getRuntime().exec(command);

Causes

• Default execution of commands does not open a command prompt window.
• The command format used does not specify to open a new window.

Solutions

• Use the command `cmd /c start` followed by your desired command to ensure it opens in a new command window.
• For example, to open Notepad, use `String command = "cmd /c start notepad.exe";`.

Mistake: Forgetting to include 'cmd /c start' before the command.

Solution: Always prefix your command with 'cmd /c start' to ensure it opens in a new window.

Mistake: Not handling exceptions that may arise from exec() calls.

Solution: Wrap exec() in a try-catch block to handle IOExceptions.