在Java中创建(不是真正的)随机整数数组

I want to write a code that generates an array of random integers in Java which should hold 256 integers and where the values of integers are somewhere between 0 - 512(It could be 0 - 256 or 0 - 1024 but not 0 - 1 million something.. ) . However, every time I run this code, I should get the same randomized array. I want to write a code that generates an array