/**
   Demo of && vs &
 */

public class AndTypes {
    
    public static void main (String [] args) {

	boolean t = true;
	boolean f = false;

	// Printing out booleans--invokes toString as needed
	System.out.println("t="+t); 
	System.out.println("f="+f);

	// The operators &&, &, || and | are all legal for boolean
	System.out.println("t && f = " + (t&&f));
	System.out.println("t || f = " + (t||f));
	System.out.println("t & f = " + (t&f));
	System.out.println("t | f = " + (t|f));
	
	// We can use bitwise & and | on integers
	
	int x = 0xABCD; // 1010 1011 1100 1101 hex
	int y = 0xDCBA; // 1101 1100 1011 1010 hex
	int z = x & y;  // 1000 1000 1000 1000 bitwise and
	int w = x | y;  // 1111 1111 1111 1111 bitwise or

	System.out.printf("x=%x\n",x); // yes, printf in Java!
	System.out.printf("y=%x\n",y); // the %x prints in hex
	System.out.printf("z=%x\n",z);
	System.out.printf("w=%x\n",w);

	// But we CANNOT use && and || (logical ops) on ints
	// Unlike in C/C++, Java does not treat ints as boolean.
	
	// int za = x && y; // <== syntax error
	// int wa = x || y; // <== syntax error


	
	
    }

}