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Editorial Team
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Asked: 2026-05-12T05:02:42+00:00

I don’t understand the difference between these methods. Here’s what the JavaDoc says: setLine(String)

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I don’t understand the difference between these methods.

Here’s what the JavaDoc says:

setLine(String) = Line to split into several commandline arguments.

setValue(String) = Sets a single commandline argument.

My confusion is that I see them being used interchangeably in the code I’m updating. An example:

Commandline commandline;
commandline = new Commandline(new File(jarUtilsDir,"signtool.exe").getAbsolutePath());
commandline.createArgument().setLine("--verbosity");
commandline.createArgument().setValue("-1");
commandline.createArgument().setLine("-o");

Maybe I just need an explanation of how these are supposed to be used.

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1 Answer

  1. Editorial Team

    If you’re setting a single value without a space, it doesn’t matter. However, suppose you have:

    commandline.createArgument().setLine("x y");

    that’s equivalent to:

    commandline.createArgument().setValue("x");
commandline.createArgument().setValue("y");

    whereas

    commandline.createArgument().setValue("x y");

    will do appropriate quoting (I believe) such that the program that’s called sees it as a single command line argument.

    The easy way to test this is to create an app which just prints out its arguments, one per line, and try both ways 🙂

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