/* package whatever; // don't place package name! */
 
import java.util.*;
import java.util.stream.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	private static final int COLUMNS = 5;
	private static final int TBL_RANGE = 30;
	public static void main (String[] args) throws java.lang.Exception
	{
		List<Integer> tbl = new ArrayList<>(TBL_RANGE);
		IntStream.rangeClosed(1, TBL_RANGE).forEach(tbl::add);
		int[] ns = new int[COLUMNS];
		Random random = new Random(System.currentTimeMillis());
		for (int i = 0; i < COLUMNS; i++) {
			ns[i] = tbl.remove(random.nextInt(TBL_RANGE - i));
		}
 
		for (int n : ns) {
			System.out.println(n);
		}
	}
}

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