位运算符

<< 左移运算符（一个整数左移n位，相当于整数乘以2的n次方）；
>> 右移运算符

1         Scanner scanner4 = new Scanner(System.in);
2         System.out.println("请输入一个整数:");
3         long number1 = scanner4.nextLong();
4         System.out.println("你输入的数字是：" + number1);
5         System.out.println("该数字乘以2的运算结果是：" + (number1 << 1));
6         System.out.println("该数字乘以4的运算结果是：" + (number1 << 2));
7         System.out.println("该数字乘以8的运算结果是:" + (number1 << 3));
8         System.out.println("该数字乘以16的运算结果是:" + (number1 << 4));

实现两个数大小交换（经典）：

 1         Scanner scanner5 = new Scanner(System.in);
 2         System.out.println("请输入变量A的值");
 3         long A = scanner5.nextLong();
 4         System.out.println("请输入变量B的值");
 5         long B = scanner5.nextLong();
 6         System.out.println("A=" + A + "	B=" + B);
 7         System.out.println("执行变量互换...");
 8         A = A ^ B;
 9         B = B ^ A;
10         A = A ^ B;
11         System.out.println("A=" + A + "	B=" + B);