public class Main {
    public static void main(String[] args) {
        // &按位與，運(yùn)算符兩邊的條件值會(huì)先轉(zhuǎn)換為2進(jìn)制，然后再比對(duì)運(yùn)算
        /**
         *   0 0 1 1  
         *   0 1 0 1
         *  ----------- 
         *   0 0 0 1
         */
        int a = 3&5;
        /**
         *   0 0 0 1
         *   0 0 1 0
         *  ----------- 
         *   0 0 0 0
         */
        int b = 1&2;
        System.out.println(a);// 1
        System.out.println(b);// 0
    }
}

public class Main {
    public static void main(String[] args) {
        // |按位或，運(yùn)算符兩邊的條件值會(huì)先轉(zhuǎn)換為2進(jìn)制，然后再比對(duì)運(yùn)算
        /**
         *   0 0 1 1
         *   0 1 0 1
         *  -------------
         *   0 1 1 1
         */
        int a = 3|5;
        /**
         *   0 0 0 1
         *   0 0 1 0
         *  -------------
         *   0 0 1 1
         */
        int b = 1|2;
        System.out.println(a);// 7
        System.out.println(b);// 3
    }
}

public class Main {
    public static void main(String[] args) {
        /**
         *   0 0 1 1
         *   0 1 0 1
         *  -------------
         *   0 1 1 0
         */
        int a = 3^5;
        /**
         *   0 0 0 1
         *   0 0 1 0
         *  -------------
         *   0 0 1 1
         */
        int b = 1^2;
        System.out.println(a);// 6
        System.out.println(b);// 3
    }
}

public class Main {
    public static void main(String[] args) {
        /**
         * 5<<2的意思為5的二進(jìn)制位往左挪兩位，右邊補(bǔ)0
         *  0 0 0 0 0 1 0 1
         *  0 0 0 1 0 1 0 0
         */
        System.out.println(5<<2); // 20
    }
}

public class Main {
    public static void main(String[] args) {
        /**
         * 5>>2的意思為5的二進(jìn)制位往右挪兩位，左邊補(bǔ)0
         *  0 0 0 0 0 1 0 1
         *  0 0 0 0 0 0 0 1
         */
        System.out.println(5<<2); // 1
    }
}

public class Main {
    public static void main(String[] args) {
        /**
         *     0 0 0 0 0 1 0 1
         *   ---------------------  
         *     1 1 1 1 1 0 1 0
         *  
         *  1、如果 11111010 想轉(zhuǎn)為負(fù)的十進(jìn)制，因?yàn)樽罡呶皇?，所以先將11111001減1得到11111001
         *  2、取反 00010101，然后計(jì)算出 00000100 對(duì)應(yīng)的十進(jìn)制為6
         *  3、所以 11111010 最終對(duì)應(yīng)的十進(jìn)制為 -6
         *  
         *     1 1 1 1 1 0 1 0
         *   - 0 0 0 0 0 0 0 1
         *   ---------------------
         *     1 1 1 1 1 0 0 1
         *   ---------------------
         *     0 0 0 0 0 1 0 0
         */
        System.out.println(~5); // -6
    }
}

public class Main {
    public static void main(String[] args) {
        /**
         *     0000 1111
         *   --------------- 
         *     0000 0011
         */
        System.out.println(15>>>2); // 3
    }
}

public class Main {
    public static void main(String[] args) {
        System.out.println(-6>>>3); // 536870911
    }
}