Java Shift Operators

Importorg.junit.Test;/*** 1) <<: Left shift operator * 2) >>: Right shift operator (test positive) * 3) >>: Right shift operator (test negative) * 4) >>>: Unsigned Right shift (test positive) * 5) > >>: Unsigned Right shift (test negative)*/ Public classWeiyitest {/*** <<: Left shift operator * Test number: 101*/@Test Public voidtest1 () {System.out.println (integer.tobinarystring (101));//1100101System.out.println (101 << 8);//25856System.out.println (integer.tobinarystring (101 << 8));//110010100000000        /** Left 8-bit logic * 01100101//Original Data 101 * 01100101//Left shift 8 bits, right free position with 0 complement * <----<---<----<-* 01100101 00000000//Displacement data, 25856*/System.out.println (Integer.parseint ("0110010100000000", 2));//25856// ==================================================================== //System.out.println (101 << 16);//6619136System.out.println (integer.tobinarystring (101 << 16));//1100101 00000000 00000000        /** Shift left 16-bit logic * 01100101//Original Data 101 * 01100101//Left Shift 16-bit, right free position with 0 full * <----<---<----<----<----< * 01100101 0000000 00000000//Offset Data, 6619136*/System.out.println (Integer.parseint ("011001010000000000000000", 2));//6619136    }    /*** >>: Right shift operator *----------------* Test positive: 1010001001*/@Test Public voidtest2_1 () {System.out.println (integer.tobinarystring (1010001001));//111100001100110110010001101001System.out.println (1010001001 >> 8);//3945316System.out.println (integer.tobinarystring (1010001001 >> 8));//1111000011001101100100        /** Right Shift 8-bit logic * 00111100 00110011 01100100 01101001 * 00111100 00110011 01100100/ /Right displacement 8 bit, left free position with 0 complete *---->--->---->----->---->---->----> * 00000000 00111100 00 110011 01100100//displacement of data obtained, 3945316*/System.out.println (Integer.parseint ("001111000011001101100100", 2));//3945316// ==================================================================== //System.out.println (1010001001 >> 16);//15411System.out.println (integer.tobinarystring (1010001001 >> 16));//11110000110011        /** Move right 16-bit logic * 00111100 00110011 01100100 01101001 * 00111100 00110011 Shift right 16 bits, left free position with 0 fill *---->--->---->----->---->---->----> * 00000000 00000000 00111100 00110011//displacement of data obtained, 15411*/System.out.println (Integer.parseint ("0011110000110011", 2));//15411    }    /*** >>: Right shift operator * Test negative: -1010001001 *--------------------------------* After displacement, or negative, sign bit not changed*/@Test Public voidtest2_2 () {System.out.println (integer.tobinarystring (-1010001001));//11000011110011001001101110010111System.out.println (-1010001001 >> 8);//-3945317System.out.println (integer.tobinarystring ( -1010001001 >> 8));//11111111110000111100110010011011        /** Right Shift 8-bit logic * 11000011 11001100 10011011 10010111 * 11000011 11001100 10011011/ /Right displacement 8 bit, left free position with 1 complete *---->--->---->----->---->---->----> * 11111111 11000011 11 001100 10011011//Displacement data obtained, -3945317*/        // ==================================================================== //System.out.println (-1010001001 >> 16);//-15412System.out.println (integer.tobinarystring ( -1010001001 >> 16));//11111111111111111100001111001100        /** Move right 16-bit logic * 11000011 11001100 10011011 10010111 * 11000011 11001100 Shift right 16 bits, left free position with 1 fill *---->--->---->----->---->---->----> * 11111111 11111111 11000011 11001100//Displacement data obtained, -15412*/    }    /*** >>>: Unsigned Right shift * Test positive: 1010001001*/@Test Public voidTest3_1 () {System.out.println (integer.tobinarystring (1010001001));//111100001100110110010001101001System.out.println (1010001001 >>> 8);//3945316System.out.println (integer.tobinarystring (1010001001 >>> 8));//1111000011001101100100        /** Right Shift 8-bit logic * 00111100 00110011 01100100 01101001 * 00111100 00110011 01100100/ /Right displacement 8 bit, left free position with 0 complete *---->--->---->----->---->---->----> * 00000000 00111100 00 110011 01100100//displacement of data obtained, 3945316*/System.out.println (Integer.parseint ("001111000011001101100100", 2));//3945316// ==================================================================== //System.out.println (1010001001 >>> 16);//15411System.out.println (integer.tobinarystring (1010001001 >>> 16));//11110000110011        /** Move right 16-bit logic * 00111100 00110011 01100100 01101001 * 00111100 00110011 Shift right 16 bits, left free position with 0 fill *---->--->---->----->---->---->----> * 00000000 00000000 00111100 00110011//displacement of data obtained, 15411*/System.out.println (Integer.parseint ("0011110000110011", 2));//15411    }    /*** >>>: Unsigned Right Shift * Test negative: -1010001001 *-----------------------------* Displacement, negative number becomes positive*/@Test Public voidTest3_2 () {System.out.println (integer.tobinarystring (-1010001001));//11000011110011001001101110010111System.out.println (-1010001001 >>> 8);//12831899System.out.println (integer.tobinarystring ( -1010001001 >>> 8));//110000111100110010011011        /** Right Shift 8-bit logic * 11000011 11001100 10011011 10010111 * 11000011 11001100 10011011/ /Right displacement 8 bit, left free position with 0 complete *---->--->---->----->---->---->----> * 00000000 11000011 11 001100 10011011//displacement of data obtained, 12831899*/System.out.println (Integer.parseint ("110000111100110010011011", 2));//12831899// ==================================================================== //System.out.println (-1010001001 >>> 16);//50124System.out.println (integer.tobinarystring ( -1010001001 >>> 16));//1100001111001100        /** Move right 16-bit logic * 11000011 11001100 10011011 10010111 * 11000011 11001100 Shift right 16 bits, left free position with 0 fill *---->--->---->----->---->---->----> * 00000000 00000000 11000011 11001100//displacement of data obtained, 50124*/System.out.println (Integer.parseint ("1100001111001100", 2));//50124    }}

Java Shift Operators