hashcode() in java || The IMPACT of hashcode and equals || java object class || Part 1

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The 'hashcode and equals contract in java’ is one of the most favorite questions in the java interview room. This question is also very important to test candidates

collection fundamental as the hash-based collections like HashSet , hashtable, hashmap etc uses hashcode() and equals() to get its task done. So let’s understand

the hashcode() and equals() from object class(java.lang.object) step by step.



This is part 1 of the ‘hashcode and equals series’ and we will only be talking about hashcode in this video and in the next video we will move to the equals method in java.

This tutorial based on the focus on the following topics.

1 hashcode() description

2 Understanding native åmethod in java

3 Understanding the hashcode calculation

4 Overriding hashcode method of Object class

5 Creating custom hashcode method

6 Key points of hashcode()



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