Last Updated : 11 Jul, 2025
GetHashCode() methodis 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: -870054572Example 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: 1463624248Reference:
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