/**************************************************
*   Author: Morrison
*   Date:  01 Apr 202022
**************************************************/

public class BlockHead 
{

    public static final int IQ;
    static
    {
        IQ = 6;   //Outside this is BlockHead.IQ
    }
    private int quack;  //visible inside class but not out
    public BlockHead(int quack)
    {
        this.quack = quack;
    }
    public int foo(int x)   //this x is private to foo
    {
        return x*quack;
    }
    
    public static void main(String[] args)
    {
        int x = 15;   //this variable is visible anywhere
        int y = 0;
        if(x > 10)    //in main.
        {
            y = 4;    //this variable dies at the
        }                 //end of this block
        else
        {
            y = 2;
        }
    }
}