當我讀到關於java中的BitSet類時,我遇到了下面的例子。是BitSet類的邏輯,還是& xor與邏輯門邏輯相同?java中的BitSet類
有人可以請解釋我如何或方法在上面的例子中工作?因爲當我在有關Oracle文檔或方法來讀取它說::
公共無效或(BitSet中設置)
對此位與位set參數的邏輯OR。該位集被修改,以便當且僅當它已經具有值true或者位設置參數中的相應位具有值true時,其中的位具有值true。
參數:設置 - 位設置
下面是代碼::
import java.util.BitSet;
public class BitSetDemo {
public static void main(String args[]) {
BitSet bits1 = new BitSet(16);
BitSet bits2 = new BitSet(16);
// set some bits
for(int i=0; i<16; i++) {
if((i%2) == 0) bits1.set(i);
if((i%5) != 0) bits2.set(i);
}
System.out.println("Initial pattern in bits1: ");
System.out.println(bits1);
System.out.println("\nInitial pattern in bits2: ");
System.out.println(bits2);
// AND bits
bits2.and(bits1);
System.out.println("\nbits2 AND bits1: ");
System.out.println(bits2);
// OR bits
bits2.or(bits1);
System.out.println("\nbits2 OR bits1: ");
System.out.println(bits2);
// XOR bits
bits2.xor(bits1);e
System.out.println("\nbits2 XOR bits1: ");
System.out.println(bits2);
}
}
The Output of above program is
Initial pattern in bits1:
{0, 2, 4, 6, 8, 10, 12, 14}
Initial pattern in bits2:
{1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 13, 14}
bits2 AND bits1:
{2, 4, 6, 8, 12, 14}
bits2 OR bits1:
{0, 2, 4, 6, 8, 10, 12, 14}
bits2 XOR bits1:
{}
so in the above example result of or should be {0,1,2,3,4,6,7,8,9,10,11,12,13,14} according to oracle docs instead of {0, 2, 4, 6, 8, 10, 12, 14}. or am I misunderstood the explanation?
Really appreciate the help.
太感謝你了。我覺得不力在所有ABT修改BITS2 ..謝謝.. – Myrna