Is there nay way to generate random String using this code but with size 42 symbols?
public static final String RANDOM_STRING = UUID.randomUUID().toString();
Is there nay way to generate random String using this code but with size 42 symbols?
public static final String RANDOM_STRING = UUID.randomUUID().toString();
No you cannot create more than 36 characters as UUID
is 128 bit in length. More info can be found here.
java.util.UUID.randomUUID().toString() length
If you need , will have to implement your own functionality to generate a random string having 6 characters
. For that you can use Apache Commons Lang
package. Then concatenate it with the UUID
string.
In order to get true randomness for a UUID of whatever characters longer than the typically generated 36 characters in length then you can pull a piece off (whatever length you want) of a second generated UUID. This can be all done in the same line of code:
String RANDOM_STRING = UUID.randomUUID().toString() + "-" +
UUID.randomUUID().toString().substring(0, 5);
System.out.println("The UUID String is: " + RANDOM_STRING +
" and it is " + RANDOM_STRING.length() + " characters long.");
Keep in mind though...it would not be a true UUID.
Example output:
The UUID String is: c8e1aceb-ee63-49f5-bd95-e6f3eebced20-d5c39 and it is 42 characters long.