17.位运算符

public class TestBitOperator {
	public static void main(String[] args) {
		
		int a = 3;
		int b = 4;
		
		System.out.println(a&b);
		System.out.println(a|b);
		System.out.println(a^b);
		System.out.println(~b);  //-4
		//原0000...011  -3
		//反0111...100
		//补0111...101
		//~
		//原1000...010
		//反1111...011
		//补1000...100  -4
		
		//移位
		int c = 3<<2;
		System.out.println(c);
		System.out.println(12>>1);
	}
}