The BitSet class is used to create objects that maintain a set of bits. The bits are maintained as a growable set. The capacity of the bit set is increased as needed. Bit sets are used to maintain a list of flags that indicate the state of each element of a set of conditions. Flags are boolean values that are used to represent the state of an object. It is used for representing a set of true and false values.
Two BitSetconstructors are provided.
BitSet()
BitSet(int size)
The first constructor initializes a BitSet to a default size and second constructor initialises the bitset to the given size.
import java.util.BitSet;
public class BitSetJavaExample
{
public static void main(String args[])
{
int n=8;
BitSet p = new BitSet(n);
for(int i=0;i<n;i++)
p.set(i);
System.out.print("Bits of p are set as : ");
for(int i=0;i<n;i++)
System.out.print(p.get(i)+" ");
BitSet q = (BitSet) p.clone();
System.out.print("\nBits of q are set as : ");
for(int i=0;i<n;i++)
System.out.print(q.get(i)+" ");
for(int i=0;i<3;i++)
p.clear(i);
System.out.print("\nBits of p are now set as : ");
for(int i=0;i<n;i++)
System.out.print(p.get(i)+" ");
System.out.print("\nBits of p which are true : "+p);
System.out.print("The Bits of q which are true : "+q);
BitSet r= (BitSet) p.clone();
p.xor(q);
System.out.println("Output of p xor q= "+p);
p = (BitSet) r.clone();
p.and(q);
System.out.println("Output of p and q = "+p);
p = (BitSet) r.clone();
p.or(q);
System.out.println("Output of p or q = "+p);
}
}
Dinesh Thakur holds an B.SC (Computer Science), MCSE, MCDBA, CCNA, CCNP, A+, SCJP certifications. Dinesh authors the hugely popular Computer Notes blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps. For any type of query or something that you think is missing, please feel free to Contact us.
Related Articles
Basic Courses
Advance Courses