Package g0501_0600.s0535_encode_and_decode_tinyurl

Class Codec

java.lang.Object
g0501_0600.s0535_encode_and_decode_tinyurl.Codec
public class Codec extends java.lang.Object
535 - Encode and Decode TinyURL.

Medium

> Note: This is a companion problem to the System Design problem: Design TinyURL.

TinyURL is a URL shortening service where you enter a URL such as https://leetcode.com/problems/design-tinyurl and it returns a short URL such as http://tinyurl.com/4e9iAk. Design a class to encode a URL and decode a tiny URL.

There is no restriction on how your encode/decode algorithm should work. You just need to ensure that a URL can be encoded to a tiny URL and the tiny URL can be decoded to the original URL.

Implement the Solution class:

  • Solution() Initializes the object of the system.
  • String encode(String longUrl) Returns a tiny URL for the given longUrl.
  • String decode(String shortUrl) Returns the original long URL for the given shortUrl. It is guaranteed that the given shortUrl was encoded by the same object.

Example 1:

Input: url = “https://leetcode.com/problems/design-tinyurl”

Output: “https://leetcode.com/problems/design-tinyurl”

Explanation:

 Solution obj = new Solution();
 string tiny = obj.encode(url); // returns the encoded tiny url.
 string ans = obj.decode(tiny); // returns the original url after deconding it.

Constraints:

  • 1 <= url.length <= 104
  • url is guranteed to be a valid URL.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Codec()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    java.lang.String
    decode(java.lang.String shortUrl)
     
    java.lang.String
    encode(java.lang.String longUrl)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Codec

      public Codec()

  • Method Details

    • encode

      public java.lang.String encode(java.lang.String longUrl)

    • decode

      public java.lang.String decode(java.lang.String shortUrl)