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import java.util.*;
class Bitset
{
public static void main(String args[])
{
BitSet obj1 = new BitSet(5);
BitSet obj2 = new BitSet(10);
for (int i = 0; i < 5; ++i)
obj1.set(i);
for (int i = 3; i < 13; ++i)
obj2.set(i);
obj1.and(obj2);
System.out.print(obj1);
}
}
a) {0, 1}
b) {2, 4}
c) {3, 4}
d) {3, 4, 5}
c
Explanation: obj1.and(obj2) returns an BitSet object which contains elements common to both the object obj1 and obj2 and stores this BitSet in invoking object that is obj1. Hence obj1 contains 3 & 4.
Output:
$ javac Bitset.java
$ java Bitset
{3, 4}