Boolean hashCode() method in Java with examples Last Updated : 08 Oct, 2018 Summarize Comments Improve Suggest changes Share Like Article Like Report The hashCode() method of Boolean class is a built in method to return a int hashcode value corresponding to the Boolean object. Syntax BooleanObject.hashCode() Return Type: It returns a int hashcode value corresponding to the Boolean object. It returns 1231 if the Boolean object stores the value true. It returns 1237 if the Boolean object stores the value false. Below is the implementation of hashCode() method in Java: Program 1: JAVA // java code to demonstrate // Boolean hashCode() method class GFG { public static void main(String[] args) { // creating Boolean object Boolean b = new Boolean(true); // hashCode method of Boolean class int output = b.hashCode(); // printing the output System.out.println(output); } } Output: 1231 Program 2: JAVA // java code to demonstrate // Boolean hashCode() method class GFG { public static void main(String[] args) { // creating Boolean object Boolean b = new Boolean(false); // hashCode method of Boolean class int output = b.hashCode(); // printing the output System.out.println(output); } } Output: 1237 Comment More infoAdvertise with us Next Article Double hashCode() method in Java with examples K kundankumarjha Follow Improve Article Tags : Java Java - util package Java-Functions Java-Boolean Practice Tags : Java Similar Reads Byte hashCode() method in Java with examples The hashCode() method of Byte class is a built in method in Java which is used to return the hash code of the ByteObject. Note: The hashCode() returns the same value as intValue(). Syntax ByteObject.hashCode() Return Value: It return an int value which represents the hashcode of the specified Byte o 2 min read Double hashCode() method in Java with examples The hashCode() method of Double class is a built-in method use to return the hashcode value of this Double object. Syntax: DoubleObject.hashCode() Parameters: It takes no parameters. Return Type: It returns an int value. The value returned is (int)(v^(v>>>32)) where v is a long variable equ 1 min read Class hashCode() method in Java with Examples The hashCode() method of java.lang.Class class is used to get the hashCode representation of this entity. This method returns an integer value which is the hashCode. Syntax: public int hashCode() Parameter: This method does not accept any parameter. Return Value: This method returns an integer value 1 min read BitSet hashCode Method in Java with Examples The hashCode() Method of BitSet class in Java is used to fetch the hash code value of a particular this BitSet. This returned hash codes value depends on the set bits of the bit set being passed. Syntax: BitSet.hashCode() Parameters: The method does not accept any parameters. Return Value: The metho 2 min read Calendar hashCode() Method in Java with Examples The hashCode() method in Calendar class is used to return the hash code for this Calendar Object.Syntax: public int hashCode() Parameters: The method does not take any parameters.Return Value: The method returns the hash code value for this calendar object..Below programs illustrate the working of h 2 min read Date hashCode() method in Java with Examples The hashCode() method of Java Date class returns a value which is a hash code for this object. Syntax: public int hashCode() Parameters: The function does not accept any parameter. Return Value: It returns a hashCode value for this object. Exception: The function does not throws any exception. Progr 2 min read Like