Print Primes in Range in Java: Explanation & Practice

Print all prime numbers in a range

Problem summary

Write a program that prints all prime numbers between 2 and n (inclusive).

Starter code

public class Main {
    public static void main(String[] args) {
        int n = 20; // Test case 1
        
        // Print all primes from 2 to n
        // Each on a new line
    }
}

Expected output and test cases

Primes up to 20
```
2
3
5
7
11
13
17
19
```
Primes up to 10
```
2
3
5
7
```
Primes up to 5
```
2
3
```

Hints

Outer loop goes through each number
For each number, check if it's prime
Use nested loop or helper logic for prime check

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