Question: Java language Given a string s, find the length of the longest substring without repeating characters. Example 1: Input: s = abcabcbb Output: 3 Explanation:

Java language

Given a string s, find the length of the longest substring without repeating characters.

Example 1:

Input: s = "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. Example 2:

Input: s = "bbbbb" Output: 1 Explanation: The answer is "b", with the length of 1. Example 3:

Input: s = "pwwkew" Output: 3 Explanation: The answer is "wke", with the length of 3. Notice that the answer must be a substring, "pwke" is a subsequence and not a substring.

Constraints:

0 <= s.length <= 5 * 104 s consists of English letters, digits, symbols and spaces.

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