Java UUID toString() Method

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Description

The Java UUID toString() method is used to return a String object representing this UUID.

Declaration

Following is the declaration for java.util.UUID.toString() method.

public String toString()

Parameters

NA

Return Value

The method call returns a string representation of this UUID.

Exception

NA

Getting String Representation of a UUID generated using Standard Formatted String Example

The following example shows the usage of Java UUID toString() method to get the string representation of this UUID. We've created a UUID object using a given string. Then we've printed the string representation of this UUID object using toString() method.

package com.tutorialspoint;

import java.util.UUID;

public class UUIDDemo {
   public static void main(String[] args) {

      // creating UUID      
      UUID x = UUID.fromString("38400000-8cf0-11bd-b23e-10b96e4ef00d");

      // getting string representation
      System.out.println("string representation: "+x.toString());    
   }    
}

Output

Let us compile and run the above program, this will produce the following result.

string representation: 38400000-8cf0-11bd-b23e-10b96e4ef00d

Getting String Representation of a Random UUID generated Example

The following example shows usage of Java UUID toString() method to get the string representation of this UUID. We've created a UUID object using randomUUID() method. Then we've printed the string representation of this UUID object using toString() method.

package com.tutorialspoint;

import java.util.UUID;

public class UUIDDemo {
   public static void main(String[] args) {

      // creating UUID      
      UUID x = UUID.randomUUID();

      // getting string representation
      System.out.println("string representation: "+x.toString());
   }    
}

Output

Let us compile and run the above program, this will produce the following result.

string representation: 8f5f2803-2c9b-4c6c-90d4-6d53828d245b

Getting String Representation of a UUID generated using Bytes Example

The following example shows usage of Java UUID toString() method to get the string representation of this UUID. We've created a UUID object using nameUUIDFromBytes() method. Then we've printed the string representation of this UUID object using toString() method.

package com.tutorialspoint;

import java.util.UUID;

public class UUIDDemo {
   public static void main(String[] args) {

      // creating byte array 
      byte[] nbyte = {10,20,30};

      // creating UUID from byte     
      UUID uid = UUID.nameUUIDFromBytes(nbyte);

      // getting string representation
      System.out.println("string representation: "+uid.toString());
   }    
}

Output

Let us compile and run the above program, this will produce the following result.

string representation: 7f49b84d-0bbc-38e9-a493-718013baace6