/**
 * Description of the program, this program does lots of examples
 * 
 * Hunter Lloyd
 */
public class Examples
{
    Examples()
    {
        System.out.println("This is a program to show examples of primitive data types");
        System.out.println("Plus some other things");
    }
    
    /*
     * comment example
     */
    
    public void start()
    {
        charExample();
        booleanExample();
        doubleExample();
        stringEqualityExample();
        additionExample();
        finalExample();
    }
    
    /*
     * Example for showing the difference between char, int and String
     */
    private void charExample()
    {
        char letter = 'x';
        String word = "char's have single quotes, STrings have double quotes";
       System.out.println(word + " " + letter + '4'); //4 is a char not an int in this case   
     }
     
     /*
      * boolean example, using a boolean in an if statement
      * also first example of using else
      */
    private void booleanExample()
    {
       boolean x = true;
       
       if(x)
       {
           System.out.println("x was true");
        }
        else
        {
            System.out.println("x was false");
        }
        
        x = false;
       if(x)
       {
           System.out.println("x was true");
        }
        else
        {
            System.out.println("x was false");
        }
    }
    
    /*
     * difference between a double and an int
     * int's do not hold decimal values, truncates it off
     */
    private void doubleExample()
    {
        int i = 2;
        double d = 2;
        System.out.println("i = " + i + " d = " + d);
        
        i = 2/3;
        d = 2/3;
        System.out.println("i = " + i + " d = " + d);
        
        double a = 2;
        double b = 3;
       // i = (int)a/b;
        d = a/b;
        System.out.println("i = " + i + " d = " + d);
        
        a = 7;
        
        //i = a/b;
        d = a/b;
        System.out.println("i = " + i + " d = " + d);
    }
    /*
     * == with a string is an error, you have to call the equals method
     */
    private void stringEqualityExample()
    {
       //difference between assignment and equality
        int x = 8;
        int y = 7;
       
      System.out.println(x=y);
      System.out.println(x==y);
     

       String a = "hunter";
       String b = "hunter";
       
      System.out.println(a=b);
      System.out.println(a==b);
      System.out.println(a.equals(b));
       
    
    }
    
    /*
     * ++x and x++ examples what happens in what order, pay close attention
     */
    private void additionExample()
    {
        int x = 5;
        
        x += 4;
        System.out.println("after addtion: " + x);
        
        System.out.println("++x " + (++x));
        System.out.println("x++ " + (x++));
    }
    
    private void finalExample()
    {
        final int MAX = 5;
       
        //MAX = 6;
        
        System.out.println("MAX " + MAX);
    }
    
    /*
     * main method that starts program
     */
    
	public static void main(String [] args)
	{
	     Examples e = new Examples();  
	     e.start();
	}
}