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Explain the term- Comparing Strings
For comparing Strings never use == operator, use equals method of String class.
- == operator compares addresses (shallow comparison) while equals compares values (deep comparison)
For instance: string1.equals (string2)
Difference between HashMap and Hash table HashMap: It allow us to have null values and also one null key It is Unsynchronized. Iterator in HashMap is Fail-Safe.
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