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Thread: How to Put Spaces in the Output of Passed Arguments?

  1. #1
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    Default How to Put Spaces in the Output of Passed Arguments?

    When passing in an argument using the cmd console, such as "java Hello Shook Ones" how would you get the output to contain spaces in between the args?

    Here is some of my code:
    if(args.length <= 0)
         System.out.print("Hello World");
    else if (args.length > 0)			
    {
        System.out.print("Hello ");
        for (int i = 0; i < args.length; i++)
              System.out.print(args[i]);
    }

    What would I add to my for loop to have the output appear as "Hello Shook Ones" instead of " Hello ShookOnes."?

    Thanks in advance.


  2. #2
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    Default Re: How to Put Spaces in the Output of Passed Arguments?

    In passing them in, use double quotes to surround the arguments to denote that it is one string:

    REM from command prompt
    javac helloworld.class "Shook Ones"

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    Default Re: How to Put Spaces in the Output of Passed Arguments?

    Well is that the only way to do it? This is part of an instructed assignment (of course) and the directions called for an output of "Hello whatever input" if a user were to pass in "java Hello whatever input". So I am assuming there is something within my code that I need to change so that those args can be passed instead instead of passing with "java Hello "whatever input"" Thanks for responding.

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    Default Re: How to Put Spaces in the Output of Passed Arguments?

    If your strings are coming in separately, then you could simply use what you have, but print out a space between each word

    System.out.print(args[i] + " ");

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    Default Re: How to Put Spaces in the Output of Passed Arguments?

    Just put spaces in explicitly:
    if(args.length <= 0)
         System.out.print("Hello World");
    else if (args.length > 0)			
    {
        System.out.print("Hello");
        for (int i = 0; i < args.length; i++)
              System.out.print(" "+args[i]);
    }
    System.out.println();

    Also, the final line I added will print a newline character at the end. You should probably always do this.

  6. #6
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    Default Re: How to Put Spaces in the Output of Passed Arguments?

    Thanks guys that worked fine.

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