96 lines
2.9 KiB
Java
96 lines
2.9 KiB
Java
// operators/BitManipulation.java
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// ©2015 MindView LLC: see Copyright.txt
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// Using the bitwise operators.
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import java.util.*;
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import static com.mindviewinc.util.Print.*;
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public class BitManipulation {
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public static void main(String[] args) {
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Random rand = new Random(47);
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int i = rand.nextInt();
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int j = rand.nextInt();
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printBinaryInt("-1", -1);
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printBinaryInt("+1", +1);
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int maxpos = 2147483647;
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printBinaryInt("maxpos", maxpos);
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int maxneg = -2147483648;
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printBinaryInt("maxneg", maxneg);
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printBinaryInt("i", i);
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printBinaryInt("~i", ~i);
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printBinaryInt("-i", -i);
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printBinaryInt("j", j);
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printBinaryInt("i & j", i & j);
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printBinaryInt("i | j", i | j);
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printBinaryInt("i ^ j", i ^ j);
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printBinaryInt("i << 5", i << 5);
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printBinaryInt("i >> 5", i >> 5);
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printBinaryInt("(~i) >> 5", (~i) >> 5);
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printBinaryInt("i >>> 5", i >>> 5);
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printBinaryInt("(~i) >>> 5", (~i) >>> 5);
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long l = rand.nextLong();
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long m = rand.nextLong();
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printBinaryLong("-1L", -1L);
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printBinaryLong("+1L", +1L);
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long ll = 9223372036854775807L;
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printBinaryLong("maxpos", ll);
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long lln = -9223372036854775808L;
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printBinaryLong("maxneg", lln);
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printBinaryLong("l", l);
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printBinaryLong("~l", ~l);
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printBinaryLong("-l", -l);
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printBinaryLong("m", m);
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printBinaryLong("l & m", l & m);
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printBinaryLong("l | m", l | m);
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printBinaryLong("l ^ m", l ^ m);
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printBinaryLong("l << 5", l << 5);
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printBinaryLong("l >> 5", l >> 5);
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printBinaryLong("(~l) >> 5", (~l) >> 5);
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printBinaryLong("l >>> 5", l >>> 5);
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printBinaryLong("(~l) >>> 5", (~l) >>> 5);
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}
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static void printBinaryInt(String s, int i) {
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print(s + ", int: " + i + ", binary:\n " +
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Integer.toBinaryString(i));
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}
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static void printBinaryLong(String s, long l) {
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print(s + ", long: " + l + ", binary:\n " +
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Long.toBinaryString(l));
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}
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}
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/* Output: (First 32 Lines)
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-1, int: -1, binary:
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11111111111111111111111111111111
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+1, int: 1, binary:
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1
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maxpos, int: 2147483647, binary:
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1111111111111111111111111111111
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maxneg, int: -2147483648, binary:
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10000000000000000000000000000000
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i, int: -1172028779, binary:
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10111010001001000100001010010101
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~i, int: 1172028778, binary:
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1000101110110111011110101101010
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-i, int: 1172028779, binary:
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1000101110110111011110101101011
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j, int: 1717241110, binary:
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1100110010110110000010100010110
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i & j, int: 570425364, binary:
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100010000000000000000000010100
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i | j, int: -25213033, binary:
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11111110011111110100011110010111
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i ^ j, int: -595638397, binary:
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11011100011111110100011110000011
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i << 5, int: 1149784736, binary:
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1000100100010000101001010100000
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i >> 5, int: -36625900, binary:
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11111101110100010010001000010100
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(~i) >> 5, int: 36625899, binary:
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10001011101101110111101011
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i >>> 5, int: 97591828, binary:
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101110100010010001000010100
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(~i) >>> 5, int: 36625899, binary:
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10001011101101110111101011
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...
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*/
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