如何生成一定範圍內的隨機數？How can I generate a random number

GreenCup

如何生成一定範圍內的隨機數？
How can I generate a random number in a certain range?

1. final int random = new Random().nextInt(61) + 20; // [0, 60] + 20 => [20, 80]

複製代碼

1. final int min = 20;
   
2. final int max = 80;
   
3. final int random = new Random().nextInt((max - min) + 1) + min;

複製代碼