ArrayUtils.java

package edu.stanford.hci.r3.util;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class ArrayUtils {

        public static <T> List<T> convertArrayToList(T[] arrayOfObjects) {
                final ArrayList<T> list = new ArrayList<T>();
                Collections.addAll(list, arrayOfObjects);
                return list;
        }

        public static void printArray(double[] array) {
                System.out.print("Double Array: [");
                for (int i = 0; i < array.length; i++) {
                        System.out.print(array[i]);
                        if (i != array.length - 1) {
                                System.out.print(", ");
                        }
                }
                System.out.println("]");
        }

        public static void printArray(Object[] array) {
                String className = array[0].getClass().toString();
                System.out.print(className.substring(className.lastIndexOf(".") + 1, className.length())
                                + " Array: [");
                for (int i = 0; i < array.length; i++) {
                        System.out.print(array[i]);
                        if (i != array.length - 1) {
                                System.out.print(", ");
                        }
                }
                System.out.println("]");
        }

        public static void printMatrix(Object[][] matrix) {
                int numRows = matrix[0].length;
                int numCols = matrix.length;
                System.out.println("Matrix of " + matrix[0][0].getClass().getSimpleName() + ": [");
                for (int y = 0; y < numRows; y++) {
                        System.out.print("    row " + y + ": [");
                        for (int x = 0; x < numCols; x++) {
                                System.out.print(matrix[x][y]);
                                if (x != numCols - 1) {
                                        System.out.print(", ");
                                }
                        }
                        System.out.println("]");
                }
                System.out.println("]");
        }

        public static String toString(int[] array) {
                StringBuilder sb = new StringBuilder();
                sb.append("[");
                for (int i : array) {
                        sb.append(i + ", ");
                }
                if (sb.length() > 1) {
                        sb.delete(sb.length() - 2, sb.length());
                }
                sb.append("]");
                return sb.toString();
        }

        public static String toString(Object[] array) {
                StringBuilder sb = new StringBuilder();
                sb.append("[");
                for (Object o : array) {
                        sb.append(o + ", ");
                }
                if (sb.length() > 1) {
                        sb.delete(sb.length() - 2, sb.length());
                }
                sb.append("]");
                return sb.toString();
        }
}

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