Here you can find the source of toStringList(final double[] array)
public static List<String> toStringList(final double[] array)
//package com.java2s; //License from project: Open Source License import java.util.ArrayList; import java.util.List; public class Main { public static List<String> toStringList(final double[] array) { List<String> list = new ArrayList<String>(array.length); for (int i = 0; i < array.length; i++) { list.add(String.valueOf(array[i])); }/*from ww w. ja v a 2 s. c o m*/ return list; } public static List<String> toStringList(final int[] array) { List<String> list = new ArrayList<String>(array.length); for (int i = 0; i < array.length; i++) { list.add(String.valueOf(array[i])); } return list; } public static <E> List<String> toStringList(final E[] array) { List<String> stringList = null; if (array != null) { stringList = new ArrayList<String>(array.length); for (E e : array) { if (e != null) { stringList.add(e.toString()); } else { stringList.add(null); } } } return stringList; } public static <E> String toString(final int[] list) { return toString(list, "\t"); } public static <E> String toString(final int[] list, String separator) { StringBuilder sb = new StringBuilder(); if (list != null && list.length > 0) { for (int i = 0; i < list.length - 1; i++) { sb.append(list[i]).append(separator); } sb.append(list[list.length - 1]); } return sb.toString(); } public static <E> String toString(final double[] list) { return toString(list, "\t"); } public static <E> String toString(final double[] list, String separator) { StringBuilder sb = new StringBuilder(); if (list != null && list.length > 0) { for (int i = 0; i < list.length - 1; i++) { sb.append(list[i]).append(separator); } sb.append(list[list.length - 1]); } return sb.toString(); } public static <E> String toString(final E[] list) { return toString(list, "\t"); } public static <E> String toString(final E[] list, String separator) { StringBuilder sb = new StringBuilder(); if (list != null && list.length > 0) { for (int i = 0; i < list.length - 1; i++) { if (list[i] != null) { sb.append(list[i].toString()).append(separator); } else { sb.append("null"); } } if (list[list.length - 1] != null) { sb.append(list[list.length - 1].toString()); } else { sb.append("null"); } } return sb.toString(); } }