What are the Methods used in StringBuffer in Java?

1. Java String Handling

2. Introduction

3. String Constructors

4. String(char chars[], int startIndex, int len)

5. String(String s) method

6. String(byte asciiChars[])

7. String(byte asciiChars[], int startIndex, int len)

8. String length()

9. String Operations

10. String Conversion and toString()

11. Character Extraction

12. charAt() method

13. getChars() method

14. getByte() method

15. toCharArray() method

16. String Comparison

17. Searching Strings

18. Modifying a String

19. Changing the case of Characters

20. StringBuffer

21. Constructors in StringBuffer:

22. Methods used in StringBuffer

23. Some other important methods are:

24. insert() method in String Handling

25. reverse() method in java

26. substring() method

Methods used in StringBuffer in java
length() and capacity():
=>The length() method is used to find the current length of a StringBuffer.
=>To find the total allocated capacity can be found though capacity() method.


Syntax: int length()
int capacity()
ensureCapacity()

If we want to pre-allocate room for characters after a StringBuffer has been created.

Class sb1
{
 public static void main(String args[])
 { 
  StringBuffer sb=new StringBuffer(“HEERA”); 
  Sb.ensureCapacity(50); 
  Sop(“buffer= “+sb); 
  Sop(“length= “+sb.length()); 
  Sop(“capacity= “+sb.capacity()); 
 }
}