import java.util.*;

public class ArrayExample {
   public static void main(String[] args) {
      // value semantics 
      int x = 5;
      int z = x;
      
      // reference semantics
      // Think about how many new arrays are being created.
      // Remember there are two ways to create a new array:
      //    1) using the "new" keyword -- new int[]
      //    2) using quick initialization -- {...}
      // Here we are only creating one new array, and 
      // two references to that array.
      int[] data = {-8, 274, -54, 782, 92, 42, -384, 17};
      System.out.println(Arrays.toString(data));
      absoluteValue(data);
      System.out.println(Arrays.toString(data));
      
   }
   
   public static void absoluteValue(int[] data) {
      for (int i = 0; i < data.length; i++) {
         data[i] = Math.abs(data[i]);
      }
   
   }
   
   
}