What is the difference between string and stringbuffer in Java ?

Question

Can anyone tell me what’s the difference between String and StringBuffer in Java and the maximum size of the String?

Answer 1

String : It helps you to manipulate character strings which are immutable. 

StringBuffer: It’s to represent characters which can be modified. 

You can get the maximum size of these two by Integer.MAX_VALUE (231 - 1 = 2,147,483,647) or you can divide maximum heap size by 2. 

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