Java: Create a unique identifier of a given string

Last update on March 17 2025 13:22:54 (UTC/GMT +8 hours)

Write a Java program to create a distinct identifier for a given string.

Sample Solution:

Java Code:

// Define a public class named Exercise18.
public class Exercise18 {
    // Define the main method.
    public static void main(String[] args) {
        // Declare and initialize a string variable.
        String str = "Python Exercises.";

        // Get the hash code for the string.
        int hash_code = str.hashCode();

        // Display the hash code.
        System.out.println("The hash for " + str +
            " is " + hash_code);
    }
}

Sample Output:

The hash for Python Exercises. is 863132599 

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Java program to generate a hash code for a string and verify its uniqueness for similar strings.
• Write a Java program to compute the hash code of a string using a custom algorithm and compare it with Java’s hashCode().
• Write a Java program to create a distinct identifier for a string by combining its length and hash code.
• Write a Java program to generate a hash for a string and then use it to index an array of strings.

Java Code Editor:

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