The hashCode() method returns the hash code of a string. The hash code for a String object is computed like this: s[0]*31^(n-1) + s[1]*31^(n-2) + ... + s[n-1] where s[i] is the ith character of the string, n is the length of the string, and ^ indicates exponentiation.

Mar 20, 2013 · Given an instance s of the java.lang.String class, for example, would have a hash code h(s) defined by h(s)=s[0]*31^(n-1) + s[1]*31^(n-2) + ... + s[n-1] where terms are summed using Java 32-bit int addition, s[i] denotes the ith character of the string, and n is the length of s.

Oct 31, 2019 · Definition: The String hashCode() method returns the hashcode value of the String as an Integer. Syntax: public int hashCode() Hashcode is calculated using below formula

Jan 8, 2024 · Simply put, hashCode () returns an integer value, generated by a hashing algorithm. Objects that are equal (according to their equals ()) must return the same hash code. Different objects do not need to return different hash codes. The general contract of hashCode () states:

Jun 6, 2023 · The Java String hashCode() method is used to return the particular value’s hash value. The hashCode() uses an internal hash function that returns the hash value of the stored value in the String variable.

May 27, 2019 · Java String hashCode () method returns the integer hash code value of this string. String class overrides this method from Object class.

Mar 27, 2023 · The .hashCode() method returns an integer hash code value for the object on which it is invoked. The hash code for a String object is computed as follows: s[i] is the i -th character of the string, n is the length of the string, and ^ indicates exponentiation.

The Java String hashCode() method returns a hash code for the string. In this tutorial, you will learn about the Java String hashCode() method with the help of an example.

Jun 25, 2023 · Java String hashCode() returns the hash code for the String. The hash value is used in hashing-based collections like HashMap, HashTable etc.

Dec 18, 2024 · The hashCode() method in Java's String class is a crucial tool for generating integer hash codes. Essentially, this method is used widely in hashing data structures like hash tables or hash maps, where it assists in determining …