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Thread: Beginner at Java: I need to figure out how to print a number which is odd and negative and fits in a formula.

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    Default Beginner at Java: I need to figure out how to print a number which is odd and negative and fits in a formula.

    I am really new to java and wanted to know how I can print an int which is both negative and odd and if so, needs to be put into the formula (n^2+1) . I am not looking particularly for answers (although I would appreciate them greatly) I just generally want to better my knowledge of java. Thanks in advanced.


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    Default Re: Beginner at Java: I need to figure out how to print a number which is odd and negative and fits in a formula.

    how I can print an int
    Can you use the System.out.println() method to print it?
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Beginner at Java: I need to figure out how to print a number which is odd and negative and fits in a formula.

    Yes I can use println

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    Default Re: Beginner at Java: I need to figure out how to print a number which is odd and negative and fits in a formula.

    That answers the question. Did you have any other questions?
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Beginner at Java: I need to figure out how to print a number which is odd and negative and fits in a formula.

    I was wondering how I could go about printing a number both negative and odd using "if" statements and (I'm assuming but not entirely sure) boolean?

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    Default Re: Beginner at Java: I need to figure out how to print a number which is odd and negative and fits in a formula.

    Are you asking how to determine if a number is odd and negative?
    A test for even or odd is to compare the results of theNumber % 2 : 1 is odd, 0 is even
    A test for negative is if theNumber < 0
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Beginner at Java: I need to figure out how to print a number which is odd and negative and fits in a formula.

    Thank you I will try this and come back

    --- Update ---

    That was helpful (i now understand the modulus operator) but I am getting problems in my code where it is not converting to boolean. See I'm trying to get the code to run with two requirements but I can't seem to do that. This is my code for the int so far:

    public static void main(String[] args){
    int n=11;
    if (n<0){
    if (n%2);
    System.out.println(n^2+1));
    }

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    Default Re: Beginner at Java: I need to figure out how to print a number which is odd and negative and fits in a formula.

    I am getting problems
    Please copy the full text of the error messages and paste it here.

    Please edit your post and wrap your code with
    [code=java]
    <YOUR CODE HERE>
    [/code]
    to get highlighting and preserve formatting.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Beginner at Java: I need to figure out how to print a number which is odd and negative and fits in a formula.

    Sure! Hold on...
    package variables;
    public class SimpleCalc {
    		public static void main(String[] args){
    			int n=11;
    			if (n<0){
    			if (n%2);                                           //Error Message occurs here: Mismatch - cannot convert to boolean
    				System.out.println(n^2+(n/2));
    				}
    			if (n>=0) {                                         //The ones after this are fine
    				System.out.println(n^3*(n-1));
    				}
     
    			if (n>=0) {
    				System.out.println(n^-1*(3*n));
    				}
    	}
    }
    Last edited by IneedHelpwithJava; March 18th, 2013 at 05:10 PM. Reason: Update

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    Default Re: Beginner at Java: I need to figure out how to print a number which is odd and negative and fits in a formula.

    The expression in the if statement must use a boolean operator that returns a boolean result. % returns a numeric value.
    See the tutorial for a list of operators that return a boolean result:
    Equality, Relational, and Conditional Operators (The Java™ Tutorials > Learning the Java Language > Language Basics)
    The if statement requires a boolean value, not a numeric value.

    a == b is a boolean value
    a + b is a numeric value
    (a + b) > 3 is a boolean value
    If you don't understand my answer, don't ignore it, ask a question.

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