Java - Compare the Objects using equals() & hashCode()

Source Code:https://thecodingsimplified.com/compa...
- By default equals method only compare the reference object
- To compare based on Object value, override the equals & hashcode method
- First compare by hashcode(), if hashCode of both Objects are different, then objects are not equal
- but if hashcode of both Objects are same, then we check the equals method
- hashcode is used to quickly checl the equality

- Now whenever you're adding Object in Set or Map, then also you need to overide the equals & hashcode
- Because, Set & Map check the equality & if Object are equal it won't add again so you need to add equality

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