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Thread: "Variable not initialized"

  1. #1
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    Default "Variable not initialized"

    This is a class that I made to test my if-else statement for calculating withholding tax for gross pay. The error I get is this:
    error: variable tax might not have been initialized
    System.out.println("Withholding Tax = " + tax);


    I initialized the variable tax and covered all of the possible values for gross in the if-else statements. So what am I doing wrong?

    import java.util.Scanner;
    class apples
    {
    	public static void main(String args[])
    	{
    		Scanner input = new Scanner(System.in);
    		double gross = input.nextDouble();
    		double tax;
     
    		if (0 <= gross && gross <= 300.00)
    		{
    			tax = 0.10;
    		}
    		else if (300.01 <= gross && gross <= 400.00)
    		{
    			tax = 0.12;
    		}
    		else if (400.01 <= gross && gross <= 500.00)
    		{
    			tax = 0.15;
    		}
    		else if (gross >= 500.01)
    		{
    			tax = 0.20;
    		}
    		else
    		{
    			System.out.println("ERROR! Gross pay is less than zero");
    		}
     
    		System.out.println("Withholding Tax = " + tax);
    	}
    }


  2. #2
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    Default Re: "Variable not initialized"

    Hello davis220!
    You have not initialized tax, you have declared it
    double tax;
    You should just give it an initial value (0 is very common for a double).

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