# Random integers that range from from 0 to n

```
```**import** java.util.Random;
**public** **class** Main {
**public** **static** **void** main(String[] argv) **throws** Exception {
Random rand = **new** Random();
**int** n = 10;
**int** i = rand.nextInt(n + 1);
System.out.println(i);
}
}

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Math:

- Convert between polar and rectangular coordinates
- Random bytes
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- Random long type number
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- Round to ceiling
- Round to floor value