Brian's Encryption Method

public class Main {

    public static void main(String[] args) {
        String msg = "Josh and Robbie are scrubs";
        String enc = "sµ¢OÀA´GÀcµ¼C±¹ÀA£¹À]½£¦C¢";
        
        System.out.println(encrypt(msg));
        System.out.println(decrypt(enc));
    }
    
    public static String decrypt(String msg)
    {
        String bin = "";
        for(int x = 0; x < msg.length(); x++){
            bin += String.format("%08d", Integer.parseInt(Integer.toString(msg.charAt(x), 2)));
        }
        
        String str = "";
        boolean flip = false;
        for(int i = 0; i < bin.length(); i++)
        {
            if (flip)
            {
                if (bin.charAt(i) == '1') str += "0";
                else str += "1";
            }
            else str += bin.substring(i, i+1);
            
            if(bin.charAt(i) == '1') flip = true;
            else flip = false;
        }
        
        String output = "";
        for(int x = 0; x <= str.length() - 8; x += 8){
            output += (char) Integer.parseInt(str.substring(x, x+8), 2);
        }
        return output;
    }
    
    public static String encrypt(String msg)
    {
        String bin = "";
        for(int x = 0; x < msg.length(); x++){
            bin += String.format("%08d", Integer.parseInt(Integer.toString(msg.charAt(x), 2)));
        }
        
        String str = "";
        boolean flip = false;
        for(int i = 0; i < bin.length(); i++)
        {
            if (flip)
            {
                if (bin.charAt(i) == '1') str += "0";
                else str += "1";
            }
            else str += bin.substring(i, i+1);
            
            if(bin.charAt(i) == '1') flip = !flip;
        }
        
        String output = "";
        for(int x = 0; x <= str.length() - 8; x += 8){
            output += (char) Integer.parseInt(str.substring(x, x+8), 2);
        }
        return output;
    }
}