public class Aufgaben {
  public static void main(String arg[]) {
    int n = 0;
    int a[] = new int[16];
    
    for (n = 0; n < a.length; n++) {
      a[n] = (int)(Math.random() * 256 - 128);
    }
    System.out.print("Array a: " + arr(a) + "\n");
    
    /* Aufgabe Betrag hier einfügen */
    for (n = 0; n < a.length; n++) {
			if ( a[n] < 0 ) {
			 a[n] = (a[n] * (-1));
			}
		}	
    
    System.out.print("Array a: " + arr(a) + "\n");
  }
  
  public static String arr(int p[]) {
    int n; String r = "";
    for (n = 0; n < p.length; n++) {
      r += p[n] + ", ";
    }
    return r;
  }
}