Thread: problems about methods....cant apply the continue y or n..

import java.io.*;
 
public class meth
{
	private static int r=0;
	private static int q=0;
	private static int b;
	private static int y;
	private static int hg;//Random Number
	private static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
	static public void main(String[]haha)throws Exception
	{
		int a=0;//Guess Result
		System.out.println(g());
		//g();
		//do{
		while(a!=31)
		{
			q++;
			try
			{
				System.out.println("Guess a Number");
				b=Integer.parseInt(br.readLine());//Random Guess
				a=f(b);//Check Guess,Random Guess
			}
 
			catch(Exception e)
			{
				r++;
				System.out.println("Invalid Input");
			}
        }
	}//while(cx(true));}
 
public static int g()//Get Random Number
{
	hg = (int)(Math.random()*31);//Random Number
	return hg;
}
 
public static int f(int y)//Check Guess,Guess
{
	if(y>hg)
	{
		System.out.println("Lower");
		return y;
	}
 
	else if(y<hg)
	{
		System.out.println("Higher");
		return y;
	}
 
	else if(y<0)
	{
		System.out.println("Negative Number is not Allowed");
		return -0;
	}
	else if(y==hg)
	{
		System.out.println("Yes The Random Number is: "+hg);
		System.out.println("Number of Tries: "+q);
		if(q==1)
		{
			System.out.println("Bravo It's Free");
			q=0;
			System.out.println(q);
		}
		int v=q*50;
		int k=r*30;
		int c=k+v;
		System.out.println("Please Pay: "+v+" For Wrong Guess");
		System.out.println("Please Pay: "+k+" For Wrong Input");
		System.out.println("Please Pay: "+c+" Overall");
 
		return 31;
	}
 
	else
	{
		return y;
	}
}
 
public static boolean cx(boolean ay)throws Exception
{
	System.out.println("Try Again Y or N?");
	String i=br.readLine();
 
	if(i.equalsIgnoreCase("y"))
	{
		ay=true;
		return true;
	}
 
	else if(i.equalsIgnoreCase("n"))
	{
		ay=false;
		return false;
	}
 
	else
	{
		ay=false;
		return false;
	}
}
}