CODEWITHSUNDEEP
java
COTE_LAPYX
COTE_LAPYX

Reputation: 11

Is it possible to give parameters to program started from batch file?

Can I give parameters to a jar file when I'm opening it with a batch file?

The batch file:

@ECHO OFF
start java -jar 2D_TestGame.jar
DebugMode = true

And this debug mode = true line giving a true value for line DebugMode in program

Upvotes: 0

Views: 212

Answers (1)

HelloWorld123
HelloWorld123

Reputation: 61

This page describes how to pass parameters to a Java program's main-method using command line parameters: https://www.tutorialspoint.com/Java-command-line-arguments#:~:text=A%20command%2Dline%20argument%20is,array%20passed%20to%20main(%20).

As you can see, that is actually the reason why you always have the String[] args as a parameter of the main-method.

A working solution for you would be: java -jar 2D_TestGame.jar true

And then the following in the main-method of your Java-program:

public static void main(String[] args) {
      if (args.length > 0) {
         // Convert the String ("true" or "false") to a boolean
         DebugMode = Boolean.parseBoolean(args[0]);
}

(Assuming you have already described boolean DebugMode as a class-variable

Upvotes: 1

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