Changeset 1296 for trunk/java-utils

Timestamp:

08/14/13 17:15:49 (11 years ago)

Author:

sherbold

Message:

• added method to find index of largest element in a double array

File:

• trunk/java-utils/src/main/java/de/ugoe/cs/util/ArrayTools.java (modified) (1 diff)

trunk/java-utils/src/main/java/de/ugoe/cs/util/ArrayTools.java

@@ -96 +96 @@
                 return maxIndex;
         }
+        
+        /**
+         * <p>
+         * Finds the highest element in an array. If multiple elements have the
+         * maximum value, the index of the first one is returned; null-values are
+         * ignored. In case the parameter array is null, has length 0 or contains
+         * only null-values, -1 is returned.
+         * </p>
+         * 
+         * @param array
+         *            the array
+         * @return index of the element with the highest value, -1 in case of an
+         *         invalid parameter
+         */
+        public static <T> int findMax(double[] array) {
+                int maxIndex = -1;
+                double maxElement = Double.MIN_VALUE;
+                if (array != null) {
+                        for (int i = 0; i < array.length; i++) {
+                                if (array[i] > maxElement) {
+                                        maxElement = array[i];
+                                        maxIndex = i;
+                                }
+                        }
+                }
+                return maxIndex;
+        }
 
         /**