GitHub

003.longest-substring-without-repeating-characters.java

* Given "abcabcbb", the answer is "abc", which the length is 3. * Given "bbbbb", the answer is "b", with the length of 1. * Given "pwwkew", the answer is "wke", with ...
GitHub

Substring With At Least K Distinct Characters.java

Given a string S with only lowercase characters. Return the number of substrings that contains at least k distinct characters. Explanation: Any substring whose length is not smaller than 3 contains a, ...
blog.csdn

Java的String.substring() 详细讲解

String中的substring()方法详解 substring()方法是 Java 中 String 类的一个常用方法，用于从一个字符串中提取其中的子串。 阅读详情 在 Java 日常开发中，字符串截取是最常用的操作之一。 java.lang.String ...
blog.csdn

java中substring与substr的用法

start 必需。一个非负的整数，规定要提取的子串的第一个字符在 stringObject 中的位置。 stop 可选。一个非负的整数，比要提取的子串的最后一个字符在 stringObject 中的位置多 1。