Can't Get Negative Values Working

Nov 11, 2014

when i input a positive integer it works but when i input a negative number it doesn't work

my pseudo code:

READ input
WHILE( NOT CORRECT INPUT)
READ INPUT AGAIN;
ENDWHILE
DECLARE array arr[input]
FOR(i=0 to input-1)
arr[i]= Random number from 0 to 100;
ENDFOR
DISPLAY ARRAY

error message when i input -5 : Exception in thread "main" java.lang.NegativeArraySizeException atPosNeg.main<PosNeg.java:36>
 
import java.util.*;
class PosNeg{
 public static void main(String args[]) {
  Random generator = new Random();
Scanner scan = new Scanner(System.in);

[code]....

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