How do I generate a random integer between min and max in Java?

Question

What method returns a random int between a min and max? Or does no such method exist?

What I'm looking for is something like this:

NAMEOFMETHOD (min, max)  

(where min and max are ints), that returns something like this:

8 

(randomly)

If such a method does exist could you please link to the relevant documentation with your answer.

Thanks.

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UPDATE

Attempting to implement the full solution and I get the following error message:

class TestR {     public static void main (String[]arg)      {            Random random = new Random() ;         int randomNumber = random.nextInt(5) + 2;         System.out.println (randomNumber) ;      }  }  

I'm still getting the same errors from the compiler:

TestR.java:5: cannot find symbol symbol  : class Random location: class TestR         Random random = new Random() ;         ^ TestR.java:5: cannot find symbol symbol  : class Random location: class TestR         Random random = new Random() ;                             ^ TestR.java:6: operator + cannot be applied to Random.nextInt,int         int randomNumber = random.nextInt(5) + 2;                                          ^ TestR.java:6: incompatible types found   : <nulltype> required: int         int randomNumber = random.nextInt(5) + 2;                                              ^ 4 errors 

What's going wrong here?

Answer 1

Construct a Random object at application startup:

Random random = new Random(); 

Then use Random.nextInt(int):

int randomNumber = random.nextInt(max + 1 - min) + min; 

Note that the both lower and upper limits are inclusive.

Answer 2

You can use Random.nextInt(n). This returns a random int in [0,n). Just using max-min+1 in place of n and adding min to the answer will give a value in the desired range.