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Tip: UUID in Java

Learn to create a new random UUID.


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/*
A UUID is a 36 character string, 32 alphanumeric characters and 4 hypens
123e4567-e89b-12d3-a456-426655440000
Java supports generation and usage of this using the java.util.UUID class
*/

public class JavaUUID
{
    public static void main(String args[])
    {
        generateUUID();
    }
    
    private static void generateUUID()
    {
        //Creating a UUID     
        java.util.UUID uuid = java.util.UUID.fromString("63982000-bc30-ab45-df12-8752fbac99");
        System.out.println("The UUID value: " + uuid);    
        
        //Generating a new randon UUID
        System.out.println("New random UUID value: " + uuid.randomUUID());    
    }
}

 

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