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The unary bitwise complement operator "~" inverts a bit pattern; it can be applied to any of the
integral types, making every "0" a "1" and every "1" a "0". For example, a byte contains 8 bits; applying
this operator to a value whose bit pattern is "00000000" would change its pattern to "11111111".
The signed left shift operator "<<" shifts a bit pattern to the left,
and the signed right shift operator ">>" shifts a bit pattern to the
right. The bit pattern is given by the left-hand operand, and the
number of positions to shift by the right-hand operand.
The unsigned right shift operator ">>>"
shifts a zero into the leftmost position, while the leftmost
position after ">>" depends on sign extension.
The bitwise & operator performs a bitwise AND operation.
The bitwise ^ operator performs a bitwise exclusive OR operation.
The bitwise | operator performs a bitwise inclusive OR operation.
The following program,
BitDemo, uses the bitwise AND operator to print the number "2" to standard output.
class BitDemo {
public static void main(String[] args) {
int bitmask = 0x000F;
int val = 0x2222;
System.out.println(val & bitmask); // prints "2"
}
}
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