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Thread: Concatenating booleans

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    Default Concatenating booleans

    Hi guys,

    Having a hard time with what should be very simple assignment. Code below.

    class TaxReturn 
    {
    	public static void main(String[] args)
    	{
     
    	// declare the variables
    	int age = 36;
    	boolean hasDependants = true;
    	boolean jointReturn = true;
    	boolean categoryA = (!hasDependants && age <= 30) || (!jointReturn);
    	boolean categoryB = (hasDependants) || (age >= 45 && jointReturn);
    	boolean categoryC = (age >= 30 && age <= 45) && (!jointReturn || !hasDependants); 
     
    	System.out.println(categoryA + categoryB + categoryC);
     
     
     
     
    	} 
     
    }

    I have tried numerous things to try to get this to compile. When i put my boolean variables into separate print statements, it compiles just fine. When i try to ditch the '+' signs in an attempt to concatenate them together, and try using escape sequences instead it throws an error saying that I am missing semicolons, even though i am not. My desired output is this:
    'CategoryA' = "false"
    'CategoryB' = "true"
    'CategoryC' = "false"

    I know adding the single and double quotes require escape sequences, but those have also been somewhat problematic unfortunately, but that's another days question anyone who can help push me in the right direction towards understanding this gets a free dog online dog


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    Default Re: Concatenating booleans

    Sometimes you have to push the toString() logic to kick in by leading the objects in the print() method with quotes, even empty ones. Try this:

    System.out.println( "" + categoryA + categoryB + categoryC );

    And keep the danged dog. I already have one I can't get rid of.

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    Default Re: Concatenating booleans

    Perfect, that worked thank you. Now, as far as using the escape characters to add the single and multi quotes inside of the print statement. The assignment is to concatenate the output said above into one single print statement, otherwise i would just initialize a char or string variable with the value of (') and ("). I really know how to get this done, but apparently just not correctly. I was able to get single quotes inside of 'CategoryA' and tried the same thing to get double quotes around the value of categoryA, but that doesn't seem to work. Please let me know of i am just missing something obvious, because I'm getting quite frustrated. And p.s. fine if you do not want my dog, please accept my cow as a token of my appreciation . He's not good for much, but that's what you get for not taking the dog i guess

    class TaxReturn 
    {
    	public static void main(String[] args)
    	{
     
    	// declare the variables
    	int age = 36;
    	boolean hasDependants = true;
    	boolean jointReturn = true;
    	boolean categoryA = (!hasDependants && age <= 30) || (!jointReturn);
    	boolean categoryB = (hasDependants) || (age >= 45 && jointReturn);
    	boolean categoryC = (age >= 30 && age <= 45) && (!jointReturn || !hasDependants); 
     
     
    	System.out.println("\'CategoryA\'" + \"categoryA\" + categoryB + categoryC );
     
     
     
     
     
    	} 
     
    }

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    Default Re: Concatenating booleans

    I think you've made it harder than it really is. Include the items in quotes separate from those that aren't. Here's an example of how I would do one of them. The rest is up to you:

    System.out.println( "'CategoryA' = " + "\"" + categoryA + "\"" );

  5. The Following User Says Thank You to GregBrannon For This Useful Post:

    ///M Dood (September 15th, 2013)

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    Default Re: Concatenating booleans

    Awesome, exactly what i was looking for thank you very much! I must have gotten confused, i know that to assign a char variable with the value of a single quote you need to use escape characters. That must have been what was throwing me off. That and the fact that you need to concatenate the double quotes individually. I thought that \"example\" would work fine, shows what i know heh. Thanks again Greg i appreciate the help.

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