1、新浪面试题:编写一个方法,计算一个字符串中,第一个不重复的字符在当前字符串中的索引。
public class JavaTest { public static String array = "abuacdeaudbdfcefhph"; public static int[] container = new int[128]; public static void main(String[] args) { for (int i = 0; i <array.length() ; i++) { int index = Character.valueOf(array.charAt(i)).hashCode(); container[index] ++; } for (int i = 0; i <array.length() ; i++) { int index = Character.valueOf(array.charAt(i)).hashCode(); if (container[index] == 1) { System.out.println("index: " + i); System.out.println("char: " + array.charAt(i)); break; } } }}