What are the different types of constructor in StringBuilder class

Question

Please explain me the different types of constructors used in a StringBuilder Class? Can someone explain them with an example?

score 0 · Answer 1 · Mar 6, 2019

There are different types of StringBuilder constructor in Java, they are as follows:

StringBuilder(): This constructs a string builder with no characters in it and has an initial capacity of 16 characters.
```
StringBuilder str = new StringBuilder();
```
StringBuilder(int capacity): Constructs a string builder with no characters in it and an initial capacity specified by the capacity argument.
```
StringBuilder str = new StringBuilder(10);
```
StringBuilder(CharSequence seq): Constructs a string builder that contains the same characters as the specified CharSequence.
```
StringBuilder str1 = new StringBuilder("AAABBCCCDDEE");
```
StringBuilder(String str): Constructs a string builder initialized to the contents of the specified string.
```
StringBuilder str = new StringBuilder(str1);
```

These are the constructors. Hope this helps.