Why String Is immutable? | Core Java Interview question

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Why string is immutable in java is explained in this video. why strings are immutable in java.
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As per our immutable concept string value didnt change but here java in memory not change to wave, but in program why it is give op wave, I mean it didnt show any error

korebhagath

Simple and clear explanation. Been searching for a clear explanation and finally got one. Thanks.

lakshnarayanan

Did we really get the answer? From the POV of a language designer, the only answer to why strings are immutable came at the very end. They are useful as keys for hashmaps and safer while multi threading. The heap stuff is the answer to “Given you decided to make strings immutable in your language, how can you reduce the load on memory?”

dillonmrose

String has nothing to do with hashmap key, hashmap works in a different way and determine uniqueness by hashcode of the key. Also not suitable for use to store password since it'll stay in string pool. Learn more.

sabyasachimukherjee

How string is secure the username and password? Pls elaborate it

knowledgeshare

After concating Java to Wave, Java Wave is not created in String pool, it is created in heap area, , , , comment me, if I am wrong

akshaykulkarni

Very good explanation, continue to do more videos.

harishb

Thank you for explanation! But what is intern() method?

FabiaNightshadow

Nice explanation...can you give an example of how string immutability helps in security of database Configurations or URLs ?

rajeshranjan

Very clear 👍.. but please elaborate on security aspect

custardapple

I need hash map internal mechanism with example in the above same way mam

rameshc

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