The numbers of rows and columns in a rectangular array form a factor pair for that number.
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Each factor pair is an array.
If you can arrange the counters in the shape of a rectangle with at least two in each row and each column then the number is composite. The numbers of row and the numbers of columns are factors of the given number. If the only rectangle you can make is the "degenerate" one, with only one row or only one column, then the number is prime.
use a loop(for or while) to get the input from the user then store each in the array using the Scanner class like this import java.util.Scanner;//before class declaration int[] Array = new int[10]; //just an example gets 10 ints from user Scanner input = new Scanner(System.in); then something like this for(int i = 0; i < 10;i++) { System.out.println("enter number:"); Array[i]= input.nextInt(); }
There are a number of different ways to loop using PHP. They're as follows:ForForeachWhileDo-whileBelow are some examples of how each of these types of loop work.ForForeachWhileDo-while