Why String is final in Java? - Site Owners Forums

bhavnasingh482 · 07-27-2017, 01:46 AM

Hi friends,
I would like to know,
Why String is final in Java?

spurtcommerce · 02-12-2018, 05:12 AM

String is a very core class in Java, many things rely on it working a certain way, for example being immutable. Making the class final prevents subclasses that could break these assumptions. Note that, even now, if you use reflection, you can break Strings (change their value or hashcode).

GeorgeAlbie · 02-13-2018, 11:40 PM

String is a very core class in Java, many things rely on it working a certain way, for example being immutable. Making the class final prevents subclasses that could break these assumptions. Note that, even now, if you use reflection, you can break Strings (change their value or hashcode)

samaron · 02-20-2018, 11:20 PM

String is a very core class in Java, many things rely on it working a certain way, for example being immutable. Making the class final prevents subclasses that could break these assumptions. Note that, even now, if you use reflection, you can break Strings (change their value or hashcode).

smmexpertss · 02-23-2018, 04:07 AM

Once you assign a string object, that object can not be changed in memory. In summary, what you did is to change the reference of "a" to a new string object. Java String is immutable, String will Store the value in the form of object.

samaron · 02-26-2018, 03:04 AM

String is a very core class in Java, many things rely on it working a certain way, for example being immutable. Making the class final prevents subclasses that could break these assumptions. Note that, even now, if you use reflection, you can break Strings (change their value or hashcode).

adityadev · 03-18-2019, 03:37 AM

String is a very core class in Java, many things rely on it working a certain way, for example being immutable. Making the class final prevents subclasses that could break these assumptions. Note that, even now, if you use reflection, you can break Strings

07-27-2017, 01:46 AM	#1
bhavnasingh482 Registered User Join Date: Dec 2014 Posts: 93	Why String is final in Java? Hi friends, I would like to know, Why String is final in Java? __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. \| To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. \| To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

02-12-2018, 05:12 AM	#2
spurtcommerce Registered User Join Date: Oct 2017 Posts: 16	String is a very core class in Java, many things rely on it working a certain way, for example being immutable. Making the class final prevents subclasses that could break these assumptions. Note that, even now, if you use reflection, you can break Strings (change their value or hashcode). __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.* \| *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.* To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

02-13-2018, 11:40 PM	#3
GeorgeAlbie Registered User Join Date: Nov 2017 Posts: 156	String is a very core class in Java, many things rely on it working a certain way, for example being immutable. Making the class final prevents subclasses that could break these assumptions. Note that, even now, if you use reflection, you can break Strings (change their value or hashcode) __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. \| To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. \| To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

03-18-2019, 03:37 AM	#7
adityadev Registered User Join Date: Jul 2017 Posts: 86	String is a very core class in Java, many things rely on it working a certain way, for example being immutable. Making the class final prevents subclasses that could break these assumptions. Note that, even now, if you use reflection, you can break Strings __________________ *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.* \| *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.* \| *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.*

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02-20-2018, 11:20 PM	#4
samaron Registered User Join Date: Sep 2017 Posts: 177	String is a very core class in Java, many things rely on it working a certain way, for example being immutable. Making the class final prevents subclasses that could break these assumptions. Note that, even now, if you use reflection, you can break Strings (change their value or hashcode).

02-23-2018, 04:07 AM	#5
smmexpertss Registered User Join Date: Sep 2015 Location: UK Posts: 447	Once you assign a string object, that object can not be changed in memory. In summary, what you did is to change the reference of "a" to a new string object. Java String is immutable, String will Store the value in the form of object.

02-26-2018, 03:04 AM	#6
samaron Registered User Join Date: Sep 2017 Posts: 177	String is a very core class in Java, many things rely on it working a certain way, for example being immutable. Making the class final prevents subclasses that could break these assumptions. Note that, even now, if you use reflection, you can break Strings (change their value or hashcode).

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