Core Java Interview Questions On String buffer and String builder.

Anurag

5 years ago

Hello Friends, In this blog post(Core Java Interview Questions On String Buffer and String Builder), I am going to let you know about a few more questions about core Java related to a String Buffer and String Builder.

Core Java interview questions cover all the important questions of the topic mentioned above|Core Java Interview Questions On String buffer and String builder|

These core Java interview questions are a great help to remember all the important highlights and important topics from each Java chapter|Core Java Interview Questions On String buffer and String builder|

These interview questions will surely help to understand a few very confusing concepts in Java.

What is the difference between string and string buffer classes in Java?

String class objects are immutable and hence their contents cannot be modified, string buffer class objects are mutable, so they can be modified.

Moreover, the methods that directly manipulate the data of the object are not available in the string class. Such methods are available in the StringBuffer class.

Are there any other classes whose objects are immutable?

Yes, classes like character, byte, integer, float, double, long, … called wrapper classes are created as immutable classes like class, big integer big decimal are also immutable.

What is the difference between string buffer and string builder classes?

The string buffer class is synchronized and the string builder is not. When the programmer wants to use several threads, he should use a string buffer as it gives reliable results.

If only one thread is used, string builder is preferred, as it improves execution time.

So this was all about the Core Java interview questions on this topic.

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