Why stringbuilder vs stringbuffer

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In pursuit of transforming engineers into leaders. When programming in Java, Strings are one of the most used classes.

A String is an object which is used when you want to represent a sequence of characters. They have several properties, and one of them is immutability, which means that they cannot be modified.

String Buffers and String Builders were introduced in Java to tackle this. Using these classes, modifications can be done over and over again. Before diving into the classes, we shall familiarize ourselves with the concept of strings in Java. Strings are used in Java to store a sequence of character values. They are treated as objects in the Java programming language. We have various options to create and manipulate strings. Strings have some properties, and one of them is that they are immutable, which means that they cannot be modified.

But what if you want a string that can be modified. Now that we have an understanding of what strings are, we shall proceed with our comparison.

String Buffer is a class modification used in Java to add more functionality to the strings by giving characteristics like mutability. We can use methods like append , insert , reverse , replace , etc. StringBuffer has four defined constructors; they are as follows:. Let us discuss some of the different methods we can use in StringBuffer to modify a particular string:. There are many differences between StringBuffer and StringBuilder.

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