Thread: Party Bits problem

Alright So I am working on the first problem of this assignment and I have hit a road block. When my answer prints out it puts both a 1 and a 0 on and I only want it to do wone or the other depending on whether or not the number of ones is even or odd.
This is my code

public class message
{
    private String parity1;
    private int countOfOnes;
    public message(String Parity1)
    {
        parity1 = Parity1;
        int countOfOnes;
 
    }
 
    public String getParity()
    {
        return parity1;
    }
 
    public void setParity(String Parity1)
    {
        parity1 = Parity1;
    }
 
    public int countOnes()
    {
       String abc = parity1;
       int countOfOnes = abc.length()-abc.replaceAll("1","").length();
       return countOfOnes;   
    }
 
    public String sendWithEvenParity()   
    { 
 
       if(countOfOnes %2 == 0)
       {
            parity1 = parity1 + "1";
 
        }
 
        else
        {
            parity1 = parity1 + "0";
        }
       return parity1;
 
    }
 
    public String sendWithOddParity()
    {
 
        if(countOfOnes%2 == 0 )
        {
            parity1 = parity1 + "0";
        }
        else
        {   if(countOfOnes%2 == 1 )
                parity1 = parity1 + "1";
        }
 
        return parity1;
   }
 
   public String toString()
    {
        return parity1;
    }
 
 
}

It has a driver class that out puts the info

public class parityFun
{
    public static void main(String[]args)
 {
    message parity = new message("1111111");
    message parity2 = new message("1111110");
 
    System.out.println("Original Message: "+ parity);
 
    parity.sendWithEvenParity();
    parity.getParity();
    System.out.println("\tWith even Parity: " + parity);
 
 
    parity.sendWithOddParity();
    parity.getParity();
    System.out.println("\tWith odd Parity: " + parity);
 
    System.out.println("Original Message: "+ parity2);
 
    parity2.sendWithEvenParity();
    parity2.getParity();
    System.out.println("\tWith even Parity: " + parity2);
 
    parity2.sendWithOddParity();
    parity2.getParity();
    System.out.println("\tWith odd Parity: " + parity2);
 
 }
}

Well I assumed my error occurred in the other class not the driver class. I would use an if-else statement if I wanted to do one thing or another

Original Message: 1111111
With even Parity: 11111111
With odd Parity: 111111110
Original Message: 1111110
With even Parity: 11111101
With odd Parity: 111111010


that is what happened the first output is correct but all others thereafter are incorrect I'm not sure why this is.