C# | How to get the HashCode for the string Last Updated : 11 Jul, 2025 Comments Improve Suggest changes 1 Likes Like Report GetHashCode() method is used to get the hash code of the specified string. When you apply this method to the string this method will return a 32-bit signed integer hash code of the given string. Syntax: public override int GetHashCode (); Return Value: The return type of this method is System.Int32. This method return a 32-bit signed integer hash code. Below given are some examples to understand the implementation in a better way: Example 1: CSharp // C# program to illustrate // the GetHashCode() method using System; public class GFG { // main method static public void Main() { int s1, s2, s3; // strings string a1 = "abc"; string a2 = "geeks"; string a3 = "gfg"; // Get hash code of the given string by // using GetHashCode() method s1 = a1.GetHashCode(); s2 = a2.GetHashCode(); s3 = a3.GetHashCode(); // display strings and their hash code Console.WriteLine("Display strings"); Console.WriteLine("string 1: {0} and hashcode: {1}", a1, s1); Console.WriteLine("string 2: {0} and hashcode: {1}", a2, s2); Console.WriteLine("string 3: {0} and hashcode: {1}", a3, s3); } } Output: Display strings string 1: abc and hashcode: 1099313834 string 2: geeks and hashcode: -1893508949 string 3: gfg and hashcode: -870054572 Example 2: CSharp // C# program to illustrate // the GetHashCode() method using System; class GFG { // main method static public void Main() { // calling Hashcode method Hashcode("Hello"); Hashcode("GFG"); Hashcode("Geeks"); Hashcode("Geeksforgeeks"); Hashcode("C#"); Hashcode("Tutorial"); } // Hashcode method public static void Hashcode(String value) { int result; // get hash code of the entered strings result = value.GetHashCode(); Console.WriteLine("String : {0} and HashCode: {1}", value, result); } } Output: String : Hello and HashCode: -327378614 String : GFG and HashCode: 1999992308 String : Geeks and HashCode: -1893476149 String : Geeksforgeeks and HashCode: -2133923457 String : C# and HashCode: -1917577788 String : Tutorial and HashCode: 1463624248 Reference: https://learn.microsoft.com/en-us/dotnet/api/system.string.gethashcode?view=netframework-4.7.2#definition Create Quiz Comment A ankita_saini Follow 1 Improve A ankita_saini Follow 1 Improve Article Tags : C# CSharp-method CSharp-string Explore IntroductionC# Tutorial 2 min read Introduction to .NET Framework 6 min read C# .NET Framework (Basic Architecture and Component Stack) 6 min read C# Hello World 2 min read Common Language Runtime (CLR) in C# 4 min read FundamentalsC# Identifiers 2 min read Data Types in C# 6 min read C# Variables 4 min read C# Literals 5 min read Operators in C# 7 min read C# Keywords 5 min read Control StatementsC# Decision Making (if, if-else, if-else-if ladder, nested if, switch, nested switch) 5 min read C# Switch Statement 4 min read Loops in C# 4 min read C# Jump Statements (Break, Continue, Goto, Return and Throw) 4 min read OOP ConceptsClass and Objects in C# 4 min read Constructors in C# 5 min read C# Inheritance 3 min read Encapsulation in C# 2 min read C# Abstraction 4 min read MethodsMethods in C# 4 min read Method Overloading in C# 4 min read Method Parameters in C# 4 min read Method Overriding in C# 7 min read Anonymous Method in C# 2 min read ArraysArrays in C# 6 min read Jagged Arrays in C# 4 min read Array Class in C# 5 min read How to Sort an Array in C# | Array.Sort() Method Set - 1 8 min read How to find the rank of an array in C# 2 min read ArrayListArrayList in C# 6 min read ArrayList Class in C# 4 min read C# | Array vs ArrayList 2 min read StringStrings in C# 6 min read C# Verbatim String Literal - @ 5 min read C# String Class 9 min read C# StringBuilder 2 min read C# String vs StringBuilder 3 min read TupleC# Tuple 7 min read C# Tuple Class 3 min read C# ValueTuple 7 min read C# ValueTuple Struct 4 min read IndexersC# Indexers 5 min read C# Multidimensional Indexers 5 min read C# - Overloading of Indexers 3 min read Like