Java Programs

Boolean logical Operators:

Operator	Meaning
--------	-------

  &		Logical AND

  |		Logical OR

  ^		Logical XOR (eXclusive OR)

  ||		Shoft-circuit OR

  &&		Short-Circuit AND

  !		Logical unary NOT

  &=		AND assignment

  |=		OR assignment

  ^=		XOR assignment

  ==		Equal to

  !=		Not equal to

  ?:		Ternary if-then-else



A	B	A|B	A&B	A^B	!A
--------------------------------------------
F	F	F	F	F	T
F	T	T	F	T	T
T	F	T	F	T	F
T	T	T	T	F	F
--------------------------------------------

Short Circuit Logical Operators:
--------------------------------
Short-circuit Logical Operators gives result, considering left side value only, and ignoring value of right side of operator.

eg.

//Boolean Logical Operator demo

class blop {
  public static void main(String ar[]) {
	boolean a= true;
	boolean b= false;

	boolean s = a & b;  //boolean and
	System.out.println("a & b = " + s);

	boolean t = a | b;  //boolean or
	System.out.println("a | b = " + t);

	boolean u = a ^ b;  //boolean xor
	System.out.println("a ^ b = " + u);

	boolean v = !a;  //boolean not
	System.out.println("!a = " + v);

	boolean w = (a & b) ^ (!a | !b);  //boolean mix op.
	System.out.println("(a & b) ^ (!a | !b) = " + w);

	a &= b;  //boolean AND assignment a = a & b    value of a is false now
	System.out.println("a &= b   " + a);

	a |= b;  //boolean OR assignment a = a | b     values of both a and b are false here
	System.out.println("a |= b   " + a);

	a ^= b;  //boolean XOR assignment a = a ^ b     values of both aand b are false here
	System.out.println("a ^= b   " + a);

	if(a == b)
	System.out.println("a == b is true");

	if(a != b)
	System.out.println("a != b is true");

	int x;
	x = (a & b) ? 5:2;
	System.out.println("x = "+x);
	
	int no=345;
	if(x!=0 && no/x >=5)
	System.out.println("Yes number is divisible by x  = "+x);
	
  }
}

to compile : 
c:\myjavaprog>javac blop.java

to run:
c:\myjavaprog>java blop

output:
a & b = false
a | b = true
a ^ b = true
!a = false
(a & b) ^ (!a | !b) = true
a &= b   false
a |= b   false
a ^= b   false
a == b is true
x = 2
Yes number is divisible by x   2