Java BitSet isEmpty() method7 Jan 2025 | 1 min read The isEmpty() method of Java BitSet class returns true if this BitSet does not contain any bits which are set to true. Syntax:Parameter:NA Returns:The isEmpty() method returns a Boolean value true or false on the basis of this BitSet is empty or not. Exception:NA Compatibility Version:Java 1.4 or above Example 1Output:
bitset1: {1, 2, 3, 4}
bitset2: {}
bitset1 isEmpty: false
bitset2 isEmpty: true
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The length() method of Java BitSet class returns the "logical size" of this BitSet. The length of BitSet goes up to the index of the highest set bit plus one. It returns zero if the BitSet does not contain any set bit. Syntax: public int length() Parameter: NA Returns: The length()...
1 min read
The flip() method of Java BitSet class sets the bit set to its complement. For example, if a bit value contains a true value then if you apply flip() operation on it, it will return false. There are two overloaded flip() method available in BitSet class....
2 min read
The cardinality() method of Java BitSet class returns the number of bits set which are true in this BitSet. Syntax: public int cardinality() Parameter: NA Returns: The cardinality() method returns the number of bits set which are true in this BitSet. Exception: NA Compatibility Version: Java 1.4 and above Example 1 import java.util.BitSet; public class BitSetCardinalityExample1 { public static...
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The toString() method of Java BitSet class returns a string representation of this bit set. The indexes of set bit are returned from lower index to higher index. These set bit are separated by a comma and space ", " surrounded by curly braces. Syntax: public String...
1 min read
The toLongArray() method of Java BitSet class returns a new long array which contains all the bits of this bit set. This method works on the basis of following algorithm: long[] longs = bitset.toLongArray(); then longs.length == (bitset.length()+63)/64 and bitset.get(n) == ((longs[n/64] & (1L<<(n%64))) != 0) for all...
1 min read
The size() method of Java BitSet class returns the total number of bit space actually in use by this BitSet to represent bit values. The maximum element in the set is the size - 1st element. The default size of the bit set is 64-bit space....
2 min read
The equals() method of Java BitSet class is used to compare the current BitSet object with specified object. The result of comparing BitSet bit with BitSet object returns true if and only if the specified object is not null and the set of BitSet object...
3 min read
Java BitSet iousClearBit() method The iousClearBit(int fromIndex) method of Java BitSet class returns the index of the nearest bit which is set to false (clear) that occurs on or before the specified index. It returns -1 if the specified index is negative or no such clear...
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Java BitSet SetBit() method The SetBit(int fromIndex) method of Java BitSet class returns the index of the first bit which is set to true that occurs on or after the specified index. If the BitSet does not contain any set bit then it returns -1. Syntax: public int...
2 min read
Java BitSet ClearBit() method The ClearBit(int fromIndex) method of Java BitSet class returns the index of first bit which is set to false that occurs on or after the specified index. Syntax: public int ClearBit(int fromIndex) Parameter: DataType Parameter Description int fromIndex It is an index of BitSet from which the checking of clear bit...
1 min read
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