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Java > Learn Java > Why are strings immutable in Java?
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Why are strings immutable in Java?

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Strings are immutable in Java primarily for performance and security reasons. Immutability ensures that once a string object is created, its value cannot be changed. This simplifies memory management and optimization by allowing strings to be shared and reused, rather than creating new objects every...
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Strings are immutable in Java primarily for performance and security reasons. Immutability ensures that once a string object is created, its value cannot be changed. This simplifies memory management and optimization by allowing strings to be shared and reused, rather than creating new objects every time a modification is made. Additionally, immutability enhances security by preventing unintended changes to sensitive data, as strings are often used to store passwords, API keys, and other confidential information. read less
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The String is immutable in Java because of the security, synchronization and concurrency, caching, and class loading. The reason of making string final is to destroy the immutability and to not allow others to extend it. The String objects are cached in the String pool, and it makes the String immuta...
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The String is immutable in Java because of the security, synchronization and concurrency, caching, and class loading. The reason of making string final is to destroy the immutability and to not allow others to extend it. The String objects are cached in the String pool, and it makes the String immutable.

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